| Note: For information on the term 'church', click
                here (Church Talk Section: "A Note Regarding the Term
                'Church'")   | "Because
              the Church is by divine institution the sole depository and
              interpreter of the ideals and teachings of Christ, she alone
              possesses in any complete and true sense the power effectively to
              combat that materialistic philosophy which has already done and,
              still threatens, such tremendous harm to the home and to the
              state. The Church alone can introduce into society and maintain
              therein the prestige of a true, sound spiritualism, the
              spiritualism of Christianity which both from the point of view of
              truth and of its practical value is quite superior to any
              exclusively philosophical theory. The Church is the teacher and an
              example of world good-will, for she is able to inculcate and
              develop in mankind the 'true spirit of brotherly love' (St.
              Augustine, De Moribus Ecclesiae Catholicae, i, 30) and by raising
              the public estimation of the value and dignity of the individual's
              soul help thereby to lift us even unto God." (Pope Pius XI,
              "Ubi Arcano Dei Consilio", 1922 A.D.) "[T]he
              Church of God, though afflicted by many a disaster and social
              upheaval, torn by many a heresy and schism, anguished by the
              treason of her followers and by the disloyalty of her sons,
              nevertheless, trusting in the promises of her Founder, while human
              institutions of varying origin that surrounded her fell in ruins,
              not only stood safe and unharmed, but also in every age glowed
              with brighter beauty in noble lives of holiness and devotion,
              while in many Christians she made the fire of charity burn with
              growing heat. Moreover, thanks to her missionaries and martyrs she
              brought into her Fold fresh nations, among whom the pristine glory
              of virginity renews its bloom and the rank of priest and Bishop
              keeps its vigor. In fine, so deeply has she imbued all peoples
              with her spirit of charity and justice, that the very men who
              treat her with indifference or hostility, cannot refrain from
              borrowing her way of speaking and acting." (Pope Pius XI,
              "Ad Salutem", 1930 A.D.) "The
              Church which, already conceived, came forth from the side of the
              second Adam in His sleep on the Cross, first showed herself before
              the eyes of men on the great day of Pentecost. On that day the
              Holy Ghost began to manifest His gifts in the mystic body of
              Christ, by that miraculous outpouring already foreseen by the
              prophet Joel (ii., 28-29), for the Paraclete 'sat upon the
              apostles as though new spiritual crowns were placed upon their
              heads in tongues of fire' (S. Cyril Hier. Catech. 17). Then the
              apostles 'descended from the mountain,' as St. John Chrysostom
              writes, 'not bearing in their hands tables of stone like Moses,
              but carrying the Spirit in their mind, and pouring forth the
              treasure and the fountain of doctrines and graces' (In Matt. Hom.
              L, 2 Cor. iii., 3). Thus was fully accomplished that last promise
              of Christ to His apostles of sending the Holy Ghost, who was to
              complete and, as it were, to seal the deposit of doctrine
              committed to them under His inspiration." (Pope Leo XIII,
              "Divinum Illud Munus", 1897 A.D.) "As
              her children, it is our duty, not only to make a return to her for
              her maternal goodness to us, but also to respect the authority
              which she has received from Christ in virtue of which she brings
              into captivity our understanding unto the obedience of Christ.
              Thus we are commanded to obey her laws and her moral precepts,
              even if at times they are difficult to our fallen nature; to bring
              our rebellious body into subjection through voluntary
              mortification; and at times we are warned to abstain even from
              harmless pleasures. Nor does it suffice to love this Mystical Body
              for the glory of its divine Head and for its heavenly gifts; we
              must love it with an effective love as it appears in this our
              mortal flesh - made up, that is, of weak human elements, even
              though at times they are little fitted to the place which they
              occupy in this venerable Body. In order that such a solid and
              undivided love may abide and increase in our souls day by day, we
              must accustom ourselves to see Christ Himself in the Church. For
              it is Christ who lives in His Church, and through her, teaches,
              governs, and sanctifies" (Pope Pius
              XII, "Mystici Corporis Christi", 1943 A.D.) "Now,
              as all salvation comes from Jesus Christ - for there is no other
              name under heaven given to men whereby we must be saved - Our ardent
              desire is that the most holy name of Jesus should rapidly pervade
              and fill every land. And here, indeed, is a duty which the Church,
              faithful to the divine mission entrusted to her, has never
              neglected. What has been the object of her labors for more than
              nineteen centuries? Is there any other work she has undertaken
              with greater zeal and constancy than that of bringing the nations
              of the earth to the truth and principles of Christianity? Today,
              as ever, by Our authority, the heralds of the Gospel constantly
              cross the seas to reach the farthest corners of the earth; and We
              pray to God daily that in His goodness He may deign to increase
              the number of His ministers who are really worthy of this
              apostolate, and who are ready to sacrifice their convenience,
              their health, and their very life, if need be, in order to extend
              the frontiers of the kingdom of Christ." (Pope Leo XIII,
              "Praeclara Gratulationis Publicae", 1894 A.D.) "Blessed
              Peter, prince of Apostles, and his successors have been given the
              power and care of feeding and ruling the flock of Christ, our God
              and Savior. Hence, the more grave the evils threatening the flock,
              the greater the solicitude the Roman Pontiffs ought to employ in
              preventing them. For, those who have been placed in the topmost
              watch tower of the Church can discern from afar the artifices
              which the enemies of the Christian family undertake to destroy the
              Church of Christ: (which they will never achieve) they can point
              them out and expose them to the faithful, who may then guard
              against them; they can drive away and remove them by their
              authority. Our predecessors, the Roman Pontiffs, understanding
              this most grievous duty imposed upon them, have unceasingly kept
              the watches of a good shepherd, and by exhortations, doctrines,
              decrees, and by their very life given for their sheep, have been
              solicitous about restraining and utterly abolishing the sects
              threatening the complete ruin of the Church." (Pope Leo XII,
              "Quo Graviora", 1826 A.D.) "Wherefore,
              He willed not only to train disciples in His doctrine, but to
              unite them into one society, and closely conjoin them in one body,
              'which is the Church,' whereof He would be the head. The life of
              Jesus Christ pervades, therefore, the entire framework of this
              body, cherishes and nourishes its every member, uniting each with
              each, and making all work together to the same end, albeit the
              action of each be not the same. Hence it follows that not only is
              the Church a perfect society far excelling every other, but it is
              enjoined by her Founder that for the salvation of mankind she is
              to contend 'as an army drawn up in battle array.' The organization
              and constitution of Christian society can in no wise be changed,
              neither can any one of its members live as he may choose, nor
              elect that mode of fighting which best pleases him. For, in
              effect, he scatters and gathers not who gathers not with the
              Church and with Jesus Christ, and all who fight not jointly with
              him and with the Church are in very truth contending against
              God." (Pope Leo XIII, "Sapientiae Christianae",
              1890 A.D.) "So
              that we could fulfill our duty of embracing the true faith and of
              persevering unwaveringly in it, God, through his only begotten
              Son, founded the Church, and He endowed his institution with clear
              notes to the end that She might be recognized by all as the
              guardian and teacher of the revealed word. To the Catholic Church
              alone belong all those things, so many and so marvelous, which
              have been divinely ordained to make for the manifest credibility
              of the Christian faith. What is more, the Church herself by reason
              of her astonishing propagation, her outstanding holiness and her
              inexhaustible fertility in every kind of goodness, by her Catholic
              unity and her unconquerable stability, is a kind of great and
              perpetual motive of credibility and an incontrovertible evidence
              of her own divine mission. So it comes about that, like a standard
              lifted up for the nations, she both invites to herself those who
              have not yet believed, and likewise assures her sons and daughters
              that the faith they profess rests on the firmest of
              foundations." (First Vatican Council) "In
              truth, Christ our Lord, setting Himself to fulfill the commandment
              which His Father had given Him, straightway imparted a new form
              and fresh beauty to all things, taking away the effects of their
              time-worn age. For He healed the wounds which the sin of our first
              father had inflicted on the human race; He brought all men, by
              nature children of wrath, into favor with God; He led to the light
              of truth men wearied out by longstanding errors; He renewed to
              every virtue those who were weakened by lawlessness of every kind;
              and, giving them again an inheritance of never-ending bliss, He
              added a sure hope that their mortal and perishable bodies should
              one day be partakers of immortality and of the glory of heaven. In
              order that these unparalleled benefits might last as long as men
              should be found on earth, He entrusted to His Church the
              continuance of His work; and, looking to future times, He
              commanded her to set in order whatever might have become deranged
              in human society, and to restore whatever might have fallen into
              ruin." (Pope Leo XIII, "Arcanum", 1880 A.D.) "It
              is eminently befitting the nature and necessity of the case, that
              Christ Jesus has been and shall continue to be ready to safeguard
              the Church, which His provident care established for the salvation
              of the human race. This certainty is warranted by the promise of
              her Divine Founder, which we read in the Gospel; and it must be
              clear to evidence from the annals of that Church, on which error
              has never set a stain, which no falling away - however widespread
              - of
              her sons has made to waver, which regains her youthful vigor and
              ceaselessly renews her strength despite the assaults of impious
              men, even when carried to the most shocking extremes. While our
              Lord in securing the stability and promoting the growth of His
              foundation, which belongs to all time, did not limit Himself to a
              single method nor proceed always in the selfsame way, yet it is
              noteworthy that in every age He raised up distinguished men, who,
              by talents and efforts suited to the times and their exigencies,
              should rejoice the heart of the Christian people, by successively
              curbing and conquering the 'power of darkness.'" (Pope Pius
              XI, "Ad Salutem", 1930 A.D.) "[The
              Church] is not an association of Christians brought together by
              chance, but is a divinely established and admirably constituted
              society, having for its direct and proximate purpose to lead the
              world to peace and holiness. And since the Church alone has,
              through the grace of God, received the means necessary to realize
              such end, she has her fixed laws, special spheres of action, and a
              certain method, fixed and conformable to her nature, of governing
              Christian peoples. But the exercise of such governing power is
              difficult, and leaves room for numberless conflicts, inasmuch as
              the Church rules peoples scattered through every portion of the
              earth, differing in race and customs, who, living under the sway
              of the laws of their respective countries, owe obedience alike to
              the civil and religious authorities. The duties enjoined are
              incumbent on the same persons, as already stated, and between them
              there exists neither contradiction nor confusion; for some of
              these duties have relation to the prosperity of the State, others
              refer to the general good of the Church, and both have as their
              object to train men to perfection." (Pope Leo XIII, "Sapientiae
              Christianae", 1890 A.D.) "O
              Catholic Church, true Mother of Christians! Not only doest thou
              preach to us, as is meet, how purely and chastely we are to
              worship God Himself, Whom to possess is life most blessed; thou
              does moreover so cherish neighborly love and charity, that all the
              infirmities to which sinful souls are subject, find their most
              potent remedy in thee. Childlike thou are in molding the child,
              strong with the young man, gentle with the aged, dealing with each
              according to his needs of mind of body. Thou does subject child to
              parent in a sort of free servitude, and settest parent over child
              in a jurisdiction of love. Thou bindest brethren to brethren by
              the bond of religion, stronger and closer then the bond of blood
              ... Thou unitest citizen to citizen, nation to nation, yea, all
              men, in a union not of companionship only, but of brotherhood,
              reminding them of their common origin. Thou teachest kings to care
              for their people, and biddest people to be subject to their kings.
              Thou teachest assiduously to whom honor is due, to whom love, to
              whom reverence, to whom fear, to whom comfort, to whom rebuke, to
              whom punishment; showing us that whilst not all things nor the
              same things are due to all, charity is due to all and offense to
              none." (St. Augustine, Doctor of the Church)  "Certainly
              there is the greatest need now of such valiant soldiers of Christ
              who will work with all their strength to keep the human family
              safe from the dire ruin into which it would be plunged were the
              teachings of the Gospel to be flouted, and that order of things
              permitted to prevail which tramples underfoot no less the laws of
              nature than those of God. The Church of Christ, built upon an
              unshakable rock, has nothing to fear for herself, as she knows for
              a certainty that the gates of hell shall never prevail against
              her. Rather, she knows full well, through the experience of many
              centuries, that she is wont to come forth from the most violent
              storms stronger than ever and adorned with new triumphs. Yet her
              maternal heart cannot but be moved by the countless evils with
              which so many thousands would be afflicted during storms of this
              kind, and above all by the consequent enormous injury to spiritual
              life which would work eternal ruin to so many souls redeemed by
              the Blood of Jesus Christ. To ward off such great evils from human
              society nothing, therefore, is to be left untried; to this end may
              all our labors turn, to this all our energies, to this our fervent
              and unremitting prayers to God!" (Pope Pius XI, "Quadragesimo
              Anno", 1931 A.D.) "Adhering
              firmly to the foundation of the Catholic Faith, other than which,
              as the Apostle testifies, no one can lay, we openly profess with
              Holy Mother Church that the only begotten Son of God, subsisting
              eternally together with the Father in everything in which God the
              Father exists, assumed in time in the womb of a virgin the parts
              of our nature united together, from which he himself true God
              became true man: namely the human, passible body and the
              intellectual or rational soul truly of itself and essentially
              informing the body. And that in this assumed nature the Word of
              God willed for the salvation of all not only to be nailed to the
              cross and to die on it, but also, having already breathed forth
              his spirit, permitted his side to be pierced by a lance, so that
              from the outflowing water and blood there might be formed the one,
              immaculate and holy virginal mother church, the bride of Christ,
              as from the side of the first man in his sleep Eve was fashioned
              as his wife, in this way, to the determinate figure of the first
              and old Adam, who according to the Apostle is a type of the one
              who was to come, the truth might correspond in our last Adam, that
              is to say in Christ." (Council of Vienne) "The
              Eternal Shepherd and guardian of our souls, in order to render
              permanent the saving work of redemption, determined to build a
              Church in which, as in the house of the living God, all the
              faithful should be linked by the bond of one faith and charity.
              Therefore, before He was glorified, he besought His Father, not
              for the apostles only, but also for those who were to believe in
              Him through their word, that they all might be one as the Son
              Himself and the Father are one. So then, just as He sent apostles,
              whom He chose out of the world, even as He had been sent by the
              Father, in like manner it was His will that in His Church there
              should be shepherds and teachers until the end of time. In order,
              then, that the episcopal office should be one and undivided and
              that, by the union of the clergy, the whole multitude of believers
              should be held together in the unity of faith and communion, He
              set blessed Peter over the rest of the apostles and instituted in
              him the permanent principle of both unities and their visible
              foundation. Upon the strength of this foundation was to be built
              the eternal temple, and the Church whose topmost part reaches
              heaven was to rise upon the firmness of this foundation."
              (First Vatican Council) "Hence
              it is that in this proper object of her mission, that is, 'in
              faith and morals, God Himself has made the Church sharer in the
              divine magisterium and, by a special privilege, granted her
              immunity from error; hence she is the mistress of men, supreme and
              absolutely sure, and she has inherent in herself an inviolable
              right to freedom in teaching.' By necessary consequence the Church
              is independent of any sort of earthly power as well in the origin
              as in the exercise of her mission as educator, not merely in
              regard to her proper end and object, but also in regard to the
              means necessary and suitable to attain that end. Hence with regard
              to every other kind of human learning and instruction, which is
              the common patrimony of individuals and society, the Church has an
              independent right to make use of it, and above all to decide what
              may help or harm Christian education. And this must be so, because
              the Church as a perfect society has an independent right to the
              means conducive to its end, and because every form of instruction,
              no less than every human action, has a necessary connection with
              man's last end, and therefore cannot be withdrawn from the
              dictates of the divine law, of which the Church is guardian,
              interpreter and infallible mistress." (Pope Pius XI, "Divini
              Illius Magistri", 1929 A.D.) "As
              for what concerns the exterior and temporal prosperity of the
              Church, it is evident that she has to cope with most malicious and
              powerful adversaries. Too often has she suffered at their hands
              the abolition of her rights, the diminution and oppression of her
              liberties, scorn and affronts to her authority, and every
              conceivable outrage. And if in their wickedness her enemies have
              not accomplished all the injury they had resolved upon and striven
              to do, they nevertheless seem to go on unchecked. But, despite
              them the Church, amidst all these conflicts, will always stand out
              and increase in greatness and glory. Nor can human reason rightly
              understand why evil, apparently so dominant, should yet be so
              restricted as regards its results; whilst the Church, driven into
              straits, comes forth glorious and triumphant. And she ever remains
              more steadfast in virtue because she draws men to the acquisition
              of the ultimate good. And since this is her mission, her prayers
              must have much power to effect the end and purpose of God's
              providential and merciful designs towards men. Thus, when men pray
              with and through the Church, they at length obtain what Almighty
              God has designed from all eternity to bestow upon mankind." (Pope Leo XIII, "Octobri Mense",
              1891 A.D.) "Hence
              We are not, and cannot be anxious on account of the Church, but We
              greatly fear for the salvation of very many, who proudly despise
              the Church, and by every kind of error rush to ruin; We are
              concerned for those States which We cannot but see are turned from
              God and sleeping in the midst of danger in dull security and
              insensibility. 'Nothing is equal to the Church;' [says St. John
              Chrysostom,] 'how many have opposed the Church and have themselves
              perished? The Church reaches to the heavens; such is the Church's
              greatness. She conquers when attacked; when beset by snares she
              triumphs; she struggles and is not overthrown, she fights and is
              not conquered.' Not only is she not conquered, but she preserves
              that corrective power over nature, and that effective strength of
              life that springs from God Himself, and is unchanged by time. And,
              if by this power she has freed the world grown old in vice and
              lost in superstition, why should she not again recover it when
              gone astray? Let strife and suspicion at length cease, let all
              obstacles be removed, give the possession of all her rights to the
              Church, whose duty it is to guard and spread abroad the benefits
              gained by Jesus Christ, then We shall know by experience, where
              the light of the Gospel is, and what the power of Christ can
              do." (Pope Leo XIII, "Exeunte Iam Anno", 1888 A.D.) "Again
              it is the inalienable right as well as the indispensable duty of
              the Church, to watch over the entire education of her children, in
              all institutions, public or private, not merely in regard to the
              religious instruction there given, but in regard to every other
              branch of learning and every regulation in so far as religion and
              morality are concerned. Nor should the exercise of this right be
              considered undue interference, but rather maternal care on the
              part of the Church in protecting her children from the grave
              danger of all kinds of doctrinal and moral evil. Moreover this
              watchfulness of the Church not merely can create no real
              inconvenience, but must on the contrary confer valuable assistance
              in the right ordering and well-being of families and of civil
              society; for it keeps far away from youth the moral poison which
              at that inexperienced and changeable age more easily penetrates
              the mind and more rapidly spreads its baneful effects. For it is
              true, as Leo XIII has wisely pointed out, that without proper
              religious and moral instruction 'every form of intellectual
              culture will be injurious; for young people not accustomed to
              respect God, will be unable to bear the restraint of a virtuous
              life, and never having learned to deny themselves anything. they
              will easily be incited to disturb the public order.'" (Pope
              Pius XI, "Divini Illius Magistri", 1929 A.D.) "And
              first of all education belongs preeminently to the Church, by
              reason of a double title in the supernatural order, conferred
              exclusively upon her by God Himself; absolutely superior therefore
              to any other title in the natural order. The first title is
              founded upon the express mission and supreme authority to teach,
              given her by her divine Founder: 'All power is given to me in
              heaven and in earth. Going therefore teach ye all nations,
              baptizing them in the name of the Father, and of the Son, and of
              the Holy Ghost, teaching them to observe all things whatsoever I
              have commanded you, and behold I am with you all days, even to the
              consummation of the world.' Upon this magisterial office Christ
              conferred infallibility, together with the command to teach His
              doctrine. Hence the Church 'was set by her divine Author as the
              pillar and ground of truth, in order to teach the divine Faith to
              men, and keep whole and inviolate the deposit confided to her; to
              direct and fashion men, in all their actions individually and
              socially, to purity of morals and integrity of life, in accordance
              with revealed doctrine.' The second title is the supernatural
              motherhood, in virtue of which the Church, spotless spouse of
              Christ, generates, nurtures and educates souls in the divine life
              of grace, with her Sacraments and her doctrine. With good reason
              then does St. Augustine maintain: 'He has not God for father who
              refuses to have the Church as mother.'" (Pope Pius XI, "Divini
              Illius Magistri", 1929 A.D.) "But this supremacy of
              man, which openly rejects Christ, or at least ignores Him, is
              entirely founded upon selfishness, knowing neither charity nor
              self-devotion. Man may indeed be king, through Jesus Christ: but
              only on condition that he first of all obey God, and diligently
              seek his rule of life in God's law. By the law of Christ we mean
              not only the natural precepts of morality and the Ancient Law, all
              of which Jesus Christ has perfected and crowned by His
              declaration, explanation and sanction; but also the rest of His
              doctrine and His own peculiar institutions. Of these the chief is
              His Church. Indeed whatsoever things Christ has instituted are
              most fully contained in His Church. Moreover, He willed to
              perpetuate the office assigned to Him by His Father by means of
              the ministry of the Church so gloriously founded by Himself. On
              the one hand He confided to her all the means of men's salvation,
              on the other He most solemnly commanded men to be subject to her
              and to obey her diligently, and to follow her even as Himself: 'He
              that heareth you, heareth Me; and he that despiseth you, despiseth
              Me' (Luke x, 16). Wherefore the law of Christ must be sought in
              the Church. Christ is man's 'Way'; the Church also is his 'Way' -
              Christ of Himself and by His very nature, the Church by His
              commission and the communication of His power. Hence all who would
              find salvation apart from the Church, are led astray and strive in
              vain." (Pope Leo XIII, "Tametsi Futura Prospicientibus",
              1900 A.D.) "Like
              her divine Head, the Church is forever present in the midst of her
              children. She aids and exhorts them to holiness, so that they may
              one day return to the Father in heaven clothed in that beauteous
              raiment of the supernatural. To all who are born to life on earth
              she gives a second, supernatural kind of birth. She arms them with
              the Holy Spirit for the struggle against the implacable enemy. She
              gathers all Christians [Catholics] about her altars, inviting and urging them
              repeatedly to take part in the celebration of the Mass, feeding
              them with the Bread of angels to make them ever stronger. She
              purifies and consoles the hearts that sin has wounded and soiled.
              Solemnly she consecrates those whom God has called to the priestly
              ministry. She fortifies with new gifts of grace the chaste
              nuptials of those who are destined to found and bring up a
              Christian family. When at last she has soothed and refreshed the
              closing hours of this earthly life by holy Viaticum and extreme
              unction, with the utmost affection she accompanies the mortal
              remains of her children to the grave, lays them reverently to
              rest, and confides them to the protection of the cross, against
              the day when they will triumph over death and rise again. She has
              a further solemn blessing and invocation for those of her children
              who dedicate themselves to the service of God in the life of
              religious perfection. Finally, she extends to the souls in
              purgatory, who implore her intercession and her prayers, the
              helping hand which may lead them happily at last to eternal
              blessedness in heaven." (Pope Pius XII, "Mediator
              Dei", 1947 A.D.) 
              "After
              (all these) prophetic and evangelical and apostolic writings
              (which we have set forth above), on which the Catholic Church by
              the grace of God is founded, we have thought this (fact) also
              ought to be published, namely that, although the universal
              Catholic Church spread throughout the world has the one marriage
              of Christ, nevertheless the holy Roman Church has not been
              preferred to the other churches* by reason of synodical decrees,
              but she has held the primacy by the evangelical voice of the Lord
              and Savior saying: Thou art Peter, and upon this rock I will build
              my Church, and the gates of hell shall not prevail against it, and
              I will give unto thee the keys of the kingdom of heaven, and
              whatsoever thou shalt bind upon earth, it shall be bound also in
              heaven, and whatsoever thou shalt loose upon earth, it shall be
              loosed also in heaven [Matt. 16:18 f.]. There is added also the
              association of the most blessed Paul the Apostle, the vessel of
              election, who not at a different time, as the heretics say, but at
              the one time, on one and the same day, while contending for the
              prize together with Peter was crowned with a glorious death under
              Caesar Nero in the City of Rome; and equally have they consecrated
              the above-mentioned Church of Rome to Christ the Lord and have
              raised it above all other cities in the whole world by their
              presence and their venerable triumph. Accordingly the see of Peter
              the Apostle of the Church of Rome is first, having neither spot,
              nor wrinkle, nor anything of this kind [Eph. 5:27]. But the second
              see at Alexandria was consecrated in the name of blessed Peter by
              Mark his disciple and evangelist... but the third in honor is
              considered the see of the most blessed Apostle Peter at
              Antioch." (Pope St. Gelasius I, 495 A.D.)
              [* Note: The term 'churches' herein refers to various parts of
              the Catholic Church. For more information on the term 'church', click
              here  (Church Talk Section: "A Note Regarding the Term
              'Church''")] "Consider,
              most dear ones, that the Truth could not have lied, nor will the
              faith of Peter be able to be shaken or changed forever. For
              although the devil desired to sift all the disciples, the Lord
              testifies that He Himself asked for Peter alone and wished the
              others to be confirmed by him; and to him also, in consideration
              of a greater love which he showed the Lord before the rest, was
              committed the care of feeding the sheep [cf. John 21:15 ff.]; and
              to him also He handed over the keys of the kingdom of heaven, and
              upon him He promised to build his Church, and He testified that
              the gates of hell would not prevail against it [cf. Matt. 16:16
              ff.]. But, because the enemy of the human race even until the end
              of the world does not abstain from sowing cockle [Matt. 13:25]
              over the good seed in the Church of the Lord, and therefore, lest
              perchance anyone with malignant zeal should by the instigation of
              the devil presume to make some alterations in and to draw
              conclusions regarding the integrity of the faith - and (lest) by
              reason of this your minds perhaps may seem to be disturbed, we
              have judged it necessary through our present epistle to exhort
              with tears that you should return to the heart of your mother the
              Church, and to send you satisfaction with regard to the integrity
              of faith... If anyone, however, either suggests or believes or
              presumes to teach contrary to this faith, let him know that he is
              condemned and also anathematized according to the opinion of the
              same Fathers... Consider (therefore) the fact that whoever has not
              been in the peace and unity of the Church, cannot have the Lord
              [cf. Gal. 3:7]..." (Pope Pelagius II,
              c. 585 A.D.) "Now,
              who would make bold to deny that the Church, by spreading the
              Gospel throughout the nations, has brought the light of truth
              amongst people utterly savage and steeped in foul superstition,
              and has quickened them alike to recognize the Divine Author of
              nature and duly to respect themselves? Further, who will deny that
              the Church has done away with the curse of slavery and restored
              men to the original dignity of their noble nature; and - by
              uplifting the standard of redemption in all quarters of the globe,
              by introducing, or shielding under her protection, the sciences
              and arts, by founding and taking into her keeping excellent
              charitable institutions which provide relief for ills of every
              kind - has throughout the world, in private or in public life,
              civilized the human race, freed it from degradation, and with all
              care trained it to a way of Living such as befits the dignity and
              the hopes of man? And if any one of sound mind compare the age in
              which We live, so hostile to religion and to the Church of Christ,
              with those happy times when the Church was revered as a mother by
              the nations, beyond all question he will see that our epoch is
              rushing wildly along the straight road to destruction; while in
              those times which most abounded in excellent institutions,
              peaceful life, wealth, and prosperity the people showed themselves
              most obedient to the Church's rule and laws. Therefore, if the
              many blessings We have mentioned, due to the agency and saving
              help of the Church, are the true and worthy outcome of
              civilization, the Church of Christ, far from being alien to or
              neglectful of progress, has a just claim to all men's praise as
              its nurse, its mistress, and its mother." (Pope Leo XIII,
              "Inscrutabili Dei Consilio", 1878 A.D.) "But
              with no less religious care must we preserve that great and sacred
              treasure of the truths which God Himself has taught us. By many
              and convincing arguments, often used by defenders of Christianity,
              certain leading truths have been laid down: namely, that some
              things have been revealed by God; that the only-begotten Son of
              God was made flesh, to bear witness to the truth; that a perfect
              society was founded by Him - the Church, namely, of which He is
              the head, and with which He has promised to abide till the end of
              the world. To this society He entrusted all the truths which He
              had taught, in order that it might keep and guard them and with
              lawful authority explain them; and at the same time He commanded
              all nations to hear the voice of the Church, as if it were His
              own, threatening those who would not hear it with everlasting
              perdition. Thus, it is manifest that man's best and surest teacher
              is God, the Source and Principle of all truth; and the
              only-begotten Son, who is in the bosom of the Father, the Way, the
              Truth, and the Life, the true Light which enlightens every man,
              and to whose teaching all must submit: 'And they shall all be
              taught of God.' In faith and in the teaching of morality, God
              Himself made the Church a partaker of His divine authority, and
              through His heavenly gift she cannot be deceived. She is therefore
              the greatest and most reliable teacher of mankind, and in her
              swells an inviolable right to teach them. Sustained by the truth
              received from her divine Founder, the Church has ever sought to
              fulfill holily the mission entrusted to her by God; unconquered by
              the difficulties on all sides surrounding her, she has never
              ceased to assert her liberty of teaching, and in this way the
              wretched superstition of paganism being dispelled, the wide world
              was renewed unto Christian wisdom." (Pope Leo XIII, "Libertas
              Praestantissimum", 1888 A.D.) "From
              this it follows that The Church is not something dead: it is the
              body of Christ endowed with supernatural life. As Christ, the Head
              and Exemplar, is not wholly in His visible human nature, which
              Photinians and Nestorians assert, nor wholly in the invisible
              divine nature, as the Monophysites hold, but is one, from and in
              both natures, visible and invisible; so the mystical body of
              Christ is the true Church, only because its visible parts draw
              life and power from the supernatural gifts and other things whence
              spring their very nature and essence. But since the Church is such
              by divine will and constitution, such it must uniformly remain to
              the end of time. If it did nor, then it would not have been
              founded as perpetual, and the end set before it would have been
              limited to some certain place and to some certain period of time;
              both of which are contrary to the truth. The union consequently of
              visible and invisible elements because it harmonizes with the
              natural order and by God's will belongs to the very essence of the
              Church, must necessarily remain so long as the Church itself shall
              endure. Wherefore Chrysostom writes: 'Secede not from the Church:
              for nothing is stronger than the Church. Thy hope is the Church;
              thy salvation is the Church; thy refuge is the Church. It is
              higher than the heavens and wider than the earth. It never grows
              old, but is ever full of vigor. Wherefore Holy Writ pointing to
              its strength and stability calls it a mountain' (Hom. De capto
              Eutropio, n. 6). Also Augustine says: 'Unbelievers think that the
              Christian religion will last for a certain period in the world and
              will then disappear. But it will remain as long as the sun - as long
              as the sun rises and sets: that is, as long as the ages of time
              shall roll, the Church of God - the true body of Christ on earth -
              will not disappear' (In Psalm. lxx., n. 8)." (Pope Leo
              XIII, "Satis Cognitum", 1896 A.D.) "Do you not think that a keen interest for human
              welfare is shown, not only in this, that many philosophers
              maintain that neither earth nor fire nor aught else within the
              range of sense should be worshipped as God - the only path to whom
              lies through the mind - but in the fact that an untaught multitude
              of men and women in so many different nations makes profession of
              its belief in the same truth? Witness an abstinence from food
              contenting itself with a meager diet of bread and water, fast not
              for a day but continued through many days. Witness a chastity so
              perfect as to be indifferent to wedlock and offspring, an enduring
              patience that scorns crucifixion and the stake, liberality that
              divides fortunes among the poor, in short, a contempt so intense
              of everything worldly as even to yearn for death. Not many do
              these things, fewer are they that do them well and wisely; but
              whole peoples approve, applaud, favor, aye, love such conduct. Nor
              is it without a closer approach of the mind to God, not without
              some spark of virtue, that whole peoples avow themselves too
              feeble to mount so high. This marvel has Divine Providence wrought
              by the oracles of the prophets, by the Incarnation and teaching of
              Christ, by the journeys of the Apostles, by the affronts and
              crosses and life-blood and death of martyrs, by the saintly lives
              we boast, and in all this can be discerned miracles suited to the
              needs of the time and worthy of such achievements and such
              virtues. Seeing, then, as we do such marked assistance from God,
              so much progress and fruit, shall we hesitate to nestle in the
              bosom of that Church which, as the human race confesses, stands a
              pillar of authority derived from the Apostolic See whereon
              successive Bishops have sat enthroned, while the rebel cry of
              heresy has been condemned in part by the popular voice, in part by
              the judgment of Councils, in part too by the majestic utterance of
              miracles?" (St. Augustine, Doctor of the Church) "Our
              most beloved Redeemer, Christ the Lord, willed as you well know,
              venerable brothers, to deliver all men from the captivity of the
              devil, free them from the yoke of sin, call them from darkness
              into his wonderful light and be their salvation. When he had
              blotted out the handwriting of the decree against us, fastening it
              to the cross, he formed and established the Catholic Church, won
              by his blood, as the one 'Church of the living God,' the one
              'kingdom of heaven,' 'the city set on a hill,' 'one flock,' and
              'one body' steadfast and alive with 'one Spirit,' one faith, one
              hope, one love joined and firmly held together by the same bonds
              of sacraments, religion and doctrine. He further provided his
              Church with leaders whom he chose and called. In addition, he
              decreed that the Church will endure as long as the world, embrace
              all peoples and nations of the whole world, and that whoever
              accepts his divine religion and grace and perseveres to the end
              will attain the glory of eternal salvation. To preserve forever in
              his Church the unity and doctrine of this faith, Christ chose one
              of his apostles, Peter, whom he appointed the Prince of his
              Apostles, his Vicar on earth, and impregnable foundation and head
              of his Church. Surpassing all others with every dignity of
              extraordinary authority, power and jurisdiction, he was to feed
              the Lord's flock, strengthen his brothers, rule and govern the
              universal Church. Christ not only desired that his Church remain
              as one and immaculate to the end of the world, and that its unity
              in faith, doctrine and form of government remain inviolate. He
              also willed that the fullness of dignity, power and jurisdiction,
              integrity and stability of faith given to Peter be handed down in
              its entirety to the Roman Pontiffs, the successors of this same
              Peter, who have been placed on this Chair of Peter in Rome, and to
              whom has been divinely committed the supreme care of the Lord's
              entire flock and the supreme rule of the Universal Church."
              (Pope Pius IX, "Amantissimus", 1862 A.D.) "But
              how many wonderful and shining proofs are ready at hand to
              convince the human reason in the clearest way that the religion of
              Christ is divine and that 'the whole principle of our doctrines
              has taken root from the Lord of the heavens above'; therefore
              nothing exists more definite, more settled or more holy than our
              faith, which rests on the strongest foundations. This faith, which
              teaches for life and points towards salvation, which casts out all
              vices and is the fruitful mother and nurse of the virtues, has
              been established by the birth, life, death, resurrection, wisdom,
              wonders and prophecies of Christ Jesus, its divine author and
              perfector! Shining forth in all directions with the light of
              teaching from on high and enriched with the treasures of heavenly
              wealth, this faith grew famed and notable by the foretellings of
              so many prophets, the lustre of so many miracles, the
              steadfastness of so many martyrs, and the glory of so many saints!
              It made known the saving laws of Christ and, gaining in strength
              daily even when it was most cruelly persecuted, it made its way
              over the whole world by land and sea, from the sun's rising to its
              setting, under the single standard of the Cross! The deceit of
              idols was cast down and the mist of errors was scattered. By the
              defeat of all kinds of enemies, this faith enlightened with divine
              knowledge all peoples, races and nations, no matter how barbarous
              and savage, or how different in character, morals, laws and ways
              of life. It brought them under the sweet yoke of Christ Himself by
              proclaiming peace and good tidings to all men! Now, surely all
              these events shine with such divine wisdom and power that anyone
              who considers them will easily understand that the Christian faith
              is the work of God. Human reason knows clearly from these striking
              and certain proofs that God is the author of this faith; therefore
              it is unable to advance further but should offer all obedience to
              this faith, casting aside completely every problem and hesitation.
              Human reason is convinced that it is God who has given everything
              the faith proposes to men for belief and behavior." (Pope
              Pius IX, "Qui Pluribus", 1846 A.D.)  "Never
              will there be grief enough over the corruption of morals so
              extensively increasing and promoted by irreligious and obscene
              writings, theatrical spectacles and meretricious houses
              established almost everywhere; by other depraved arts and
              monstrous portents of every error disseminated in all directions;
              by the abominable impurities of all vices and crimes growing
              constantly and the deadly virus of unbelief and indifferentism
              spread far and wide; by contempt for ecclesiastical authority,
              sacred things, and laws and by the outrageous plundering of Church
              possessions; by the bitter and constant abuse of consecrated
              Church officials, of the students of religious communities, of
              virgins dedicated to God; by the diabolical hatred of Christ, his
              Church, teaching, and of this Apostolic See. These and almost
              innumerable other evils perpetrated by the embittered enemies of
              the Catholic Church and faith, we are daily compelled to lament.
              All these agonies seem to prolong and delay that most yearned for
              time when we shall see the full triumph of our most holy religion,
              of justice, and of truth. This triumph cannot fail us, however,
              even if it is not given us to know the time destined for it by
              almighty God. Even though our heavenly Father permits his holy
              Church to be afflicted and plagued by various tribulations and
              distresses while serving during this most miserable and earthly
              pilgrimage, nevertheless, because it has been founded by Christ,
              the Lord, upon an immovable and most firm rock, it cannot be
              shaken or overthrown by any force or violence. Rather, 'it is
              strengthened, not weakened by persecutions. The Lord's vineyard is
              always clothed with a richer harvest, for while each grain dies
              singly, it is born again many-fold.' That is what we see
              happening, beloved sons and venerable brothers, even in these most
              sorrowful times as a special blessing from God. For although the
              immaculate Spouse of Christ may be vehemently troubled at the
              present time by the work of the wicked, yet she is triumphing over
              her enemies. Yes, indeed, she is conquering her enemies and shines
              wonderfully bright with your unparalleled faithfulness, love, and
              respect towards us and this Chair of Peter, and with your
              outstanding constancy and that of the other venerable brothers,
              the bishops of the whole Catholic world. She shines with many
              pious works of Christian charity multiplying rapidly each day;
              with the light of blessed faith illuminating many regions evermore
              each day; with the exceptional love and devotion shown by
              Catholics towards the Church itself, towards us, and this Holy
              See; with the eminent and immortal glory of martyrdom." (Pope Pius
              IX, "Quanto Conficiamur Moerore", 1863 A.D.) "Amid
              such reckless and widespread folly of opinion, it is, as We have
              said, the office of the Church to undertake the defense of truth
              and uproot errors from the mind, and this charge has to be at all
              times sacredly observed by her, seeing that the honor of God and
              the salvation of men are confided to her keeping. But, when
              necessity compels, not those only who are invested with power of
              rule are bound to safeguard the integrity of faith, but, as St.
              Thomas maintains: 'Each one is under obligation to show forth his
              faith, either to instruct and encourage others of the faithful, or
              to repel the attacks of unbelievers.' To recoil before an enemy,
              or to keep silence when from all sides such clamors are raised
              against truth, is the part of a man either devoid of character or
              who entertains doubt as to the truth of what he professes to
              believe. In both cases such mode of behaving is base and is
              insulting to God, and both are incompatible with the salvation of
              mankind. This kind of conduct is profitable only to the enemies of
              the faith, for nothing emboldens the wicked so greatly as the lack
              of courage on the part of the good. Moreover, want of vigor on the
              part of Christians is so much the more blameworthy, as not seldom
              little would be needed on their part to bring to naught false
              charges and refute erroneous opinions, and by always exerting
              themselves more strenuously they might reckon upon being
              successful. After all, no one can be prevented from putting forth
              that strength of soul which is the characteristic of true
              Christians, and very frequently by such display of courage our
              enemies lose heart and their designs are thwarted. Christians are,
              moreover, born for combat, whereof the greater the vehemence, the
              more assured, God aiding, the triumph: 'Have confidence; I have
              overcome the world.' Nor is there any ground for alleging that
              Jesus Christ, the Guardian and Champion of the Church, needs not
              in any manner the help of men. Power certainly is not wanting to
              Him, but in His loving kindness He would assign to us a share in
              obtaining and applying the fruits of salvation procured through
              His grace. The chief elements of this duty consist in professing
              openly and unflinchingly the Catholic doctrine, and in propagating
              it to the utmost of our power. For, as is often said, with the
              greatest truth, there is nothing so hurtful to Christian wisdom as
              that it should not be known, since it possesses, when loyally
              received, inherent power to drive away error. So soon as Catholic
              truth is apprehended by a simple and unprejudiced soul, reason
              yields assent." (Pope Leo XIII, "Sapientiae Christianae",
              1890 A.D.) "Union
              with the Roman See of Peter is to [St. Jerome] always the public
              criterion of a Catholic. 'I acknowledge everyone who is united
              with the See of Peter' (Ep. xvi., ad Damasum, n. 2). And for a
              like reason St. Augustine publicly attests that, 'the primacy of
              the Apostolic chair always existed in the Roman Church' (Ep. xliii.,
              n. 7); and he denies that anyone who dissents from the Roman faith
              can be a Catholic. 'You are not to be looked upon as holding the
              true Catholic faith if you do not teach that the faith of Rome is
              to be held' (Sermo cxx., n. 13). So, too, St. Cyprian: 'To be in
              communion with Cornelius [the pope] is to be in communion with the
              Catholic Church' (Ep. lv., n. 1). In the same way Maximus the
              Abbot teaches that obedience to the Roman Pontiff is the proof of
              the true faith and of legitimate communion. 'Therefore if a man
              does not want to be, or to be called, a heretic, let him not
              strive to please this or that man...but let him hasten before all
              things to be in communion with the Roman See. If he be in
              communion with it, he should be acknowledged by all and everywhere
              as faithful and orthodox. He speaks in vain who tries to persuade
              me of the orthodoxy of those who, like himself, refuse obedience
              to his Holiness the Pope of the most holy Church of Rome: that is
              to the Apostolic See.' The reason and motive of this he explains
              to be that 'the Apostolic See has received and hath government,
              authority, and power of binding and loosing from the Incarnate
              Word Himself; and, according to all holy synods, sacred canons and
              decrees, in all things and through all things, in respect of all
              the holy churches of God throughout the whole world*, since the
              Word in Heaven who rules the Heavenly powers binds and loosens
              there' (Defloratio ex Epistola ad Petrum illustrem). Wherefore
              what was acknowledged and observed as Christian faith, not by one
              nation only nor in one age, but by the East and by the West, and
              through all ages, this Philip, the priest, the Pontifical legate
              at the Council of Ephesus, no voice being raised in dissent,
              recalls: 'No one can doubt, yea, it is known unto all ages, that
              St. Peter, the Prince of the Apostles, the pillar of the faith and
              the ground of the Catholic Church, received the keys of the
              Kingdom from Our Lord Jesus Christ. That is: the power of
              forgiving and retaining sins was given to him who, up to the
              present time, lives and exercises judgment in the persons of his
              successors' (Actio iii.). The pronouncement of the Council of
              Chalcedon on the same matter is present to the minds of all:
              'Peter has spoken through Leo' (Actio ii.), to which the voice of
              the Third Council of Constantinople responds as an echo: 'The
              chief Prince of the Apostles was fighting on our side: for we have
              had as our ally his follower and the successor to his See: and the
              paper and the ink were seen, and Peter spoke through Agatho' (Actio
              xviii.). In the formula of Catholic faith drawn up and proposed by
              Hormisdas, which was subscribed at the beginning of the sixth
              century in the great Eighth Council by the Emperor Justinian, by
              Epiphanius, John and Menna, the Patriarchs, this same is declared
              with great weight and solemnity. 'For the pronouncement of Our
              Lord Jesus Christ saying: 'Thou art Peter, and upon this rock I
              will build my Church...' cannot be passed over. What is said is
              proved by the result, because Catholic faith has always been
              preserved without stain in the Apostolic See' (Post Epistolam,
              xxvi., ad omnes Episc. Hispan., n. 4). We have no wish to quote
              every available declaration; but it is well to recall the formula
              of faith which Michael Paleologus professed in the Second Council
              of Lyons: 'The same holy Roman Church possesses the sovereign and
              plenary primacy and authority over the whole Catholic Church,
              which, truly and humbly, it acknowledges to have received together
              with the plenitude of power from the Lord Himself, in the person
              of St. Peter, the Prince or Head of the Apostles, of whom the
              Roman Pontiff is the successor. And as it is bound to defend the
              truth of faith beyond all others, so also if any question should
              arise concerning the faith it must be determined by its judgment'
              (Actio iv.)." (Pope Leo XIII, "Satis Cognitum",
              1896 A.D.) [* Note: The term 'churches' herein refers to
              various parts of the Catholic Church. For more information on the
              term 'church', click
              here  (Church Talk Section: "A Note Regarding the Term
              'Church''")] "But
            when we consider what was actually done we find that Jesus Christ
            did not, in point of fact, institute a Church to embrace several
            communities similar in nature, but in themselves distinct, and
            lacking those bonds which render the Church unique and indivisible
            after that manner in which in the symbol of our faith we profess: 'I
            believe in one Church.' ... For this reason Christ, speaking of the
            mystical edifice, mentions only one Church, which he calls His own -
            'I will build my church;' any other Church except this one, since it
            has not been founded by Christ, cannot be the true Church... The
            Church, therefore, is bound to communicate without stint to all men,
            and to transmit through all ages, the salvation effected by Jesus
            Christ, and the blessings flowing therefrom. Wherefore, by the will
            of its Founder, it is necessary that this Church should be one in
            all lands and at all times... The Church of Christ, therefore, is
            one and the same for ever; those who leave it depart from the will
            and command of Christ, the Lord - leaving the path of salvation they
            enter on that of perdition. 'Whosoever is separated from the
            Church is united to an adulteress. He has cut himself off from the
            promises of the Church, and he who leaves the Church of Christ
            cannot arrive at the rewards of Christ...He who observes not this
            unity observes not the law of God, holds not the faith of the Father
            and the Son, clings not to life and salvation' (S. Cyprianus,
            De Cath. Eccl. Unitate, n. 6). But He, indeed, Who made this one
            Church, also gave it unity, that is, He made it such that all who
            are to belong to it must be united by the closest bonds, so as to
            form one society, one kingdom, one body - 'one body and one
            spirit as you are called in one hope of your calling (Eph. iv.,
            4)... Agreement and union of minds is the necessary foundation of
            this perfect concord amongst men, from which concurrence of wills
            and similarity of action are the natural results... Besides Holy
            Writ it was absolutely necessary to insure this union of men's minds
            - to effect and preserve unity of ideas - that there should be
            another principle. This the wisdom of God requires: for He could not
            have willed that the faith should be one if He did not provide means
            sufficient for the preservation of this unity; and this Holy Writ
            clearly sets forth... Wherefore, as appears from what has been said,
            Christ instituted in the Church a living, authoritative and
            permanent Magisterium, which by His own power He strengthened, by
            the Spirit of truth He taught, and by miracles confirmed. He willed
            and ordered, under the gravest penalties, that its teachings should
            be received as if they were His own... It is then undoubtedly the
            office of the Church to guard Christian doctrine and to propagate it
            in its integrity and purity. But this is not all: the object for
            which the Church has been instituted is not wholly attained by the
            performance of this duty. For, since Jesus Christ delivered Himself
            up for the salvation of the human race, and to this end directed all
            His teaching and commands, so He ordered the Church to strive, by
            the truth of its doctrine, to sanctify and to save mankind. But
            faith alone cannot compass so great, excellent, and important an
            end. There must needs be also the fitting and devout worship of God,
            which is to be found chiefly in the divine [Eucharistic] Sacrifice
            and in the dispensation of the Sacraments, as well as salutary laws
            and discipline. All these must be found in the Church, since it
            continues the mission of the Savior forever. The Church alone offers
            to the human race that religion - that state of absolute perfection
            - which He wished, as it were, to be incorporated in it. And it
            alone supplies those means of salvation which accord with the
            ordinary counsels of Providence. But as this heavenly doctrine was
            never left to the arbitrary judgment of private individuals, but, in
            the beginning delivered by Jesus Christ, was afterwards committed by
            Him exclusively to the Magisterium already named, so the power of
            performing and administering the divine mysteries, together with the
            authority of ruling and governing, was not bestowed by God on all
            Christians indiscriminately, but on certain chosen persons. For to
            the Apostles and their legitimate successors alone these words have
            reference: 'Going into the whole world preach the Gospel.' 'Baptizing them.'
            'Do this in commemoration of
            Me.' 'Whose sins you shall forgive they are forgiven
            them.' And in like manner He ordered the Apostles only and
            those who should lawfully succeed them to feed - that is to govern
            with authority - all Christian souls. Whence it also follows that it
            is necessarily the duty of Christians to be subject and to obey. And
            these duties of the Apostolic office are, in general, all included
            in the words of St. Paul: 'Let a man so account of us as of the
            ministers of Christ, and the dispensers of the mysteries of
            God' (I Cor. iv., I). Wherefore Jesus Christ bade all men,
            present and future, follow Him as their leader and Savior; and this,
            not merely as individuals, but as forming a society, organized and
            united in mind. In this way a duly constituted society should exist,
            formed out of the divided multitude of peoples, one in faith, one in
            end, one in the participation of the means adapted to the attainment
            of the end, and one as subject to one and the same authority. To
            this end He established in the Church all principles which
            necessarily tend to make organized human societies, and through
            which they attain the perfection proper to each. That is, in it (the
            Church), all who wished to be the sons of God by adoption might
            attain to the perfection demanded by their high calling, and might
            obtain salvation. The Church, therefore, as we have said, is man's
            guide to whatever pertains to Heaven. This is the office appointed
            unto it by God: that it may watch over and may order all that
            concerns religion, and may, without let or hindrance, exercise,
            according to its judgment, its charge over Christianity... Therefore
            the Church is a society divine in its origin, supernatural in its
            end and in means proximately adapted to the attainment of that end;
            but it is a human community inasmuch as it is composed of men. For
            this reason we find it called in Holy Writ by names indicating a
            perfect society. It is spoken of as the House of God, the city
            placed upon the mountain to which all nations must come. But it is
            also the fold presided over by one Shepherd, and into which all
            Christ's sheep must betake themselves. Yea, it is called the kingdom
            which God has raised up and which will stand forever. Finally it is
            the body of Christ - that is, of course, His mystical body, but a
            body living and duly organized and composed of many members; members
            indeed which have not all the same functions, but which, united one
            to the other, are kept bound together by the guidance and authority
            of the head. Indeed no true and perfect human society can be
            conceived which is not governed by some supreme authority. Christ
            therefore must have given to His Church a supreme authority to which
            all Christians must render obedience. For this reason, as the unity
            of the faith is of necessity required for the unity of the Church,
            inasmuch as it is the body of the faithful, so also for this same
            unity, inasmuch as the Church is a divinely constituted society,
            unity of government, which effects and involves unity of communion,
            is necessary jure divino...The nature of this supreme authority,
            which all Christians are bound to obey, can be ascertained only by
            finding out what was the evident and positive will of Christ.
            Certainly Christ is a King forever; and though invisible, He
            continues unto the end of time to govern and guard His Church from
            Heaven. But since He willed that His kingdom should be visible He
            was obliged, when He ascended into Heaven, to designate a
            vice-regent on earth.... Jesus Christ, therefore, appointed
            Peter to be that head of the Church; and He also determined that the
            authority instituted in perpetuity for the salvation of all should
            be inherited by His successors, in whom the same permanent authority
            of Peter himself should continue. And so He made that remarkable
            promise to Peter and to no one else: 'Thou are Peter, and upon
            this rock I will build my church' (Matt. xvi., 18)... From this
            text it is clear that by the will and command of God the Church
            rests upon St. Peter, just as a building rests on its foundation.
            Now the proper nature of a foundation is to be a principle of
            cohesion for the various parts of the building. It must be the
            necessary condition of stability and strength. Remove it and the
            whole building falls. It is consequently the office of St. Peter to
            support the Church, and to guard it in all its strength and
            indestructible unity... [St. Peter] alone was designated as the
            foundation of the Church. To him He gave the power of binding and
            loosing; to him alone was given the power of feeding... [T]he
            authority of the Roman Pontiff is supreme, universal, independent;
            that of the bishops limited, and dependent." (Pope Leo XIII, "Satis
              Cognitum", 1900 A.D.) Also
              See: Unity
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              (Topical Scripture) 
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