Vaticanum II - Unitatis redintegratio
DECREE ON ECUMENISM UNITATIS REDINTEGRATIO
SERVANT OF THE SERVANTS OF GOD TOGETHER WITH THE FATHERS OF THE SACRED COUNCIL FOR EVERLASTING MEMORY
But the Lord of Ages wisely and patiently follows out the plan of grace on our behalf, sinners that we are. In recent times more than ever before, He has been rousing divided Christians to remorse over their divisions and to a longing for unity. Everywhere large numbers have felt the impulse of this grace, and among our separated brethren also there increases from day to day the movement, fostered by the grace of the Holy Spirit, for the restoration of unity among all Christians. This movement toward unity is called „ecumenical.“ Those belong to it who invoke the Triune God and confess Jesus as Lord and Savior, doing this not merely as individuals but also as corporate bodies. For almost everyone regards the body in which he has heard the Gospel as his Church and indeed, God‘s Church. All however, though in different ways, long for the one visible Church of God, a Church truly universal and set forth into the world that the world may be converted to the Gospel and so be saved, to the glory of God.
The Sacred Council gladly notes all this. It has already declared its teaching on the Church, and now, moved by a desire for the restoration of unity among all the followers of Christ, it wishes to set before all Catholics the ways and means by which they too can respond to this grace and to this divine call.
CATHOLIC PRINCIPLES ON ECUMENISM
After being lifted up on the cross and glorified, the Lord Jesus poured forth His Spirit as He had promised, and through the Spirit He has called and gathered together the people of the New Covenant, who are the Church, into a unity of faith, hope and charity, as the Apostle teaches us: „There is one body and one Spirit, just as you were called to the one hope of your calling; one Lord, one faith, one Baptism“ (Eph. 4:4–5). For „all you who have been baptized into Christ have put on Christ ... for you are all one in Christ Jesus“ (Gal. 3:27–28). It is the Holy Spirit, dwelling in those who believe and pervading and ruling over the Church as a whole, who brings about that wonderful communion of the faithful. He brings them into intimate union with Christ, so that He is the principle of the Church‘s unity. The distribution of graces and offices is His work too, enriching the Church of Jesus Christ with different functions „in order to equip the saints for the work of service, so as to build up the body of Christ“ (Eph. 4:12).
In order to establish this His holy Church everywhere in the world till the end of time, Christ entrusted to the College of the Twelve the task of teaching, ruling and sanctifying. Among their number He selected Peter, and after his confession of faith determined that on him He would build His Church. Also to Peter He promised the keys of the kingdom of heaven, and after His profession of love, entrusted all His sheep to him to be confirmed in faith and shepherded in perfect unity. Christ Jesus Himself was forever to remain the chief cornerstone  and shepherd of our souls.
Jesus Christ, then, willed that the apostles and their successors -the bishops with Peter‘s successor at their head-should preach the Gospel faithfully, administer the sacraments, and rule the Church in love. It is thus, under the action of the Holy Spirit, that Christ wills His people to increase, and He perfects His people‘s fellowship in unity: in their confessing the one faith, celebrating divine worship in common, and keeping the fraternal harmony of the family of God.
The Church, then, is God‘s only flock; it is like a standard lifted high for the nations to see it: for it serves all mankind through the Gospel of peace as it makes its pilgrim way in hope toward the goal of the fatherland above.
This is the sacred mystery of the unity of the Church, in Christ and through Christ, the Holy Spirit energizing its various functions. It is a mystery that finds its highest exemplar and source in the unity of the Persons of the Trinity: the Father and the Son in the Holy Spirit, one God.
Moreover, some and even very many of the significant elements and endowments which together go to build up and give life to the Church itself, can exist outside the visible boundaries of the Catholic Church: the written word of God; the life of grace; faith, hope and charity, with the other interior gifts of the Holy Spirit, and visible elements too. All of these, which come from Christ and lead back to Christ, belong by right to the one Church of Christ.
The brethren divided from us also use many liturgical actions of the Christian religion. These most certainly can truly engender a life of grace in ways that vary according to the condition of each Church or Community. These liturgical actions must be regarded as capable of giving access to the community of salvation.
It follows that the separated Churches and Communities as such, though we believe them to be deficient in some respects, have been by no means deprived of significance and importance in the mystery of salvation. For the Spirit of Christ has not refrained from using them as means of salvation which derive their efficacy from the very fullness of grace and truth entrusted to the Church.
Nevertheless, our separated brethren, whether considered as individuals or as Communities and Churches, are not blessed with that unity which Jesus Christ wished to bestow on all those who through Him were born again into one body, and with Him quickened to newness of life-that unity which the Holy Scriptures and the ancient Tradition of the Church proclaim. For it is only through Christ‘s Catholic Church, which is „the all-embracing means of salvation,“ that they can benefit fully from the means of salvation. We believe that Our Lord entrusted all the blessings of the New Covenant to the apostolic college alone, of which Peter is the head, in order to establish the one Body of Christ on earth to which all should be fully incorporated who belong in any way to the people of God. This people of God, though still in its members liable to sin, is ever growing in Christ during its pilgrimage on earth, and is guided by God‘s gentle wisdom, according to His hidden designs, until it shall happily arrive at the fullness of eternal glory in the heavenly Jerusalem.
The term „ecumenical movement“ indicates the initiatives and activities planned and undertaken, according to the various needs of the Church and as opportunities offer, to promote Christian unity. These are: first, every effort to avoid expressions, judgments and actions which do not represent the condition of our separated brethren with truth and fairness and so make mutual relations with them more difficult; then, „dialogue“ between competent experts from different Churches and Communities. At these meetings, which are organized in a religious spirit, each explains the teaching of his Communion in greater depth and brings out clearly its distinctive features. In such dialogue, everyone gains a truer knowledge and more just appreciation of the teaching and religious life of both Communions. In addition, the way is prepared for cooperation between them in the duties for the common good of humanity which are demanded by every Christian conscience; and, wherever this is allowed, there is prayer in common. Finally, all are led to examine their own faithfulness to Christ‘s will for the Church and accordingly to undertake with vigor the task of renewal and reform.
When such actions are undertaken prudently and patiently by the Catholic faithful, with the attentive guidance of their bishops, they promote justice and truth, concord and collaboration, as well as the spirit of brotherly love and unity. This is the way that, when the obstacles to perfect ecclesiastical communion have been gradually overcome, all Christians will at last, in a common celebration of the Eucharist, be gathered into the one and only Church in that unity which Christ bestowed on His Church from the beginning. We believe that this unity subsists in the Catholic Church as something she can never lose, and we hope that it will continue to increase until the end of time.
However, it is evident that, when individuals wish for full Catholic communion, their preparation and reconciliation is an undertaking which of its nature is distinct from ecumenical action. But there is no opposition between the two, since both proceed from the marvelous ways of God.
Catholics, in their ecumenical work, must assuredly be concerned for their separated brethren, praying for them, keeping them informed about the Church, making the first approaches toward them. But their primary duty is to make a careful and honest appraisal of whatever needs to be done or renewed in the Catholic household itself, in order that its life may bear witness more clearly and faithfully to the teachings and institutions which have come to it from Christ through the Apostles.
For although the Catholic Church has been endowed with all divinely revealed truth and with all means of grace, yet its members fail to live by them with all the fervor that they should, so that the radiance of the Church‘s image is less clear in the eyes of our separated brethren and of the world at large, and the growth of God‘s kingdom is delayed. All Catholics must therefore aim at Christian perfection and, each according to his station, play his part that the Church may daily be more purified and renewed. For the Church must bear in her own body the humility and dying of Jesus, against the day when Christ will present her to Himself in all her glory without spot or wrinkle.
All in the Church must preserve unity in essentials. But let all, according to the gifts they have received enjoy a proper freedom, in their various forms of spiritual life and discipline, in their different liturgical rites, and even in their theological elaborations of revealed truth. In all things let charity prevail. If they are true to this course of action, they will be giving ever better expression to the authentic catholicity and apostolicity of the Church.
On the other hand, Catholics must gladly acknowledge and esteem the truly Christian endowments from our common heritage which are to be found among our separated brethren. It is right and salutary to recognize the riches of Christ and virtuous works in the lives of others who are bearing witness to Christ, sometimes even to the shedding of their blood. For God is always wonderful in His works and worthy of all praise.
Nor should we forget that anything wrought by the grace of the Holy Spirit in the hearts of our separated brethren can be a help to our own edification. Whatever is truly Christian is never contrary to what genuinely belongs to the faith; indeed, it can always bring a deeper realization of the mystery of Christ and the Church.
Nevertheless, the divisions among Christians prevent the Church from attaining the fullness of catholicity proper to her, in those of her sons who, though attached to her by Baptism, are yet separated from full communion with her. Furthermore, the Church herself finds it more difficult to express in actual life her full catholicity in all her bearings.
This Sacred Council is gratified to note that the participation by the Catholic faithful in ecumenical work is growing daily. It commends this work to the bishops everywhere in the world to be vigorously stimulated by them and guided with prudence.
THE PRACTICE OF ECUMENISM
Church renewal has therefore notable ecumenical importance. Already in various spheres of the Church‘s life, this renewal is taking place. The Biblical and liturgical movements, the preaching of the word of God and catechetics, the apostolate of the laity, new forms of religious life and the spirituality of married life, and the Church‘s social teaching and activity-all these should be considered as pledges and signs of the future progress of ecumenism.
The words of St. John hold good about sins against unity: „If we say we have not sinned, we make him a liar, and his word is not in us“ (1 Jn. 1:10). So we humbly beg pardon of God and of our separated brethren, just as we forgive them that trespass against us.
All the faithful should remember that the more effort they make to live holier lives according to the Gospel, the better will they further Christian unity and put it into practice. For the closer their union with the Father, the Word, and the Spirit, the more deeply and easily will they be able to grow in mutual brotherly love.
It is a recognized custom for Catholics to have frequent recourse to that prayer for the unity of the Church which the Saviour Himself on the eve of His death so fervently appealed to His Father: „That they may all be one“ (Jn. 17:21).
In certain special circumstances, such as the prescribed prayers „for unity,“ and during ecumenical gatherings, it is allowable, indeed desirable that Catholics should join in prayer with their separated brethren. Such prayers in common are certainly an effective means of obtaining the grace of unity, and they are a true expression of the ties which still bind Catholics to their separated brethren. „For where two or three are gathered together in my name, there am I in the midst of them“ (Mt. 18:20).
Yet worship in common (communicatio in sacris) is not to be considered as a means to be used indiscriminately for the restoration of Christian unity. There are two main principles governing the practice of such common worship: first, the bearing witness to the unity of the Church, and second, the sharing in the means of grace. Witness to the unity of the Church very generally forbids common worship to Christians, but the grace to be had from it sometimes commends this practice. The course to be adopted, with due regard to all the circumstances of time, place, and persons, is to be decided by local episcopal authority, unless otherwise provided for by the Bishops‘ Conference according to its statutes, or by the Holy See.
It is most important that future shepherds and priests should have mastered a theology that has been carefully worked out in this way and not polemically, especially with regard to those aspects which concern the relations of separated brethren with the Catholic Church.
This importance is the greater because the instruction and spiritual formation of the faithful and of religious depends so largely on the formation which their priests have received.
Moreover, Catholics engaged in missionary work in the same territories as other Christians ought to know, particularly in these times, the problems and the benefits in their apostolate which derive from the ecumenical movement.
At the same time, the Catholic faith must be explained more profoundly and precisely, in such a way and in such terms as our separated brethren can also really understand.
Moreover, in ecumenical dialogue, Catholic theologians standing fast by the teaching of the Church and investigating the divine mysteries with the separated brethren must proceed with love for the truth, with charity, and with humility. When comparing doctrines with one another, they should remember that in Catholic doctrine there exists a „hierarchy“ of truths, since they vary in their relation to the fundamental Christian faith. Thus the way will be opened by which through fraternal rivalry all will be stirred to a deeper understanding and a clearer presentation of the unfathomable riches of Christ .
CHURCHES AND ECCLESIAL COMMUNITIES SEPARATED FROM THE ROMAN APOSTOLIC SEE
The first divisions occurred in the East, when the dogmatic formulae of the Councils of Ephesus and Chalcedon were challenged, and later when ecclesiastical communion between the Eastern Patriarchates and the Roman See was dissolved.
Other divisions arose more than four centuries later in the West, stemming from the events which are usually referred to as „The Reformation.“ As a result, many Communions, national or confessional, were separated from the Roman See. Among those in which Catholic traditions and institutions in part continue to exist, the Anglican Communion occupies a special place.
These various divisions differ greatly from one another not only by reason of their origin, place and time, but especially in the nature and seriousness of questions bearing on faith and the structure of the Church.
Therefore, without minimizing the differences between the various Christian bodies, and without overlooking the bonds between them which exist in spite of divisions, this holy Council decides to propose the following considerations for prudent ecumenical action.
I. The Special Consideration of the Eastern Churches
Similarly it must not be forgotten that from the beginning the Churches of the East have had a treasury from which the Western Church has drawn extensively-in liturgical practice, spiritual tradition, and law. Nor must we undervalue the fact that it was the ecumenical councils held in the East that defined the basic dogmas of the Christian faith, on the Trinity, on the Word of God Who took flesh of the Virgin Mary. To preserve this faith these Churches have suffered and still suffer much.
However, the heritage handed down by the apostles was received with differences of form and manner, so that from the earliest times of the Church it was explained variously in different places, owing to diversities of genius and conditions of life. All this, quite apart from external causes, prepared the way for decisions arising also from a lack of charity and mutual understanding.
For this reason the Holy Council urges all, but especially those who intend to devote themselves to the restoration of full communion hoped for between the Churches of the East and the Catholic Church, to give due consideration to this special feature of the origin and growth of the Eastern Churches, and to the character of the relations which obtained between them and the Roman See before separation. They must take full account of all these factors and, where this is done, it will greatly contribute to the dialogue that is looked for.
In this liturgical worship, the Christians of the East pay high tribute, in beautiful hymns of praise, to Mary ever Virgin, whom the ecumenical Council of Ephesus solemnly proclaimed to be the holy Mother of God, so that Christ might be acknowledged as being truly Son of God and Son of Man, according to the Scriptures. Many also are the saints whose praise they sing, among them the Fathers of the universal Church.
These Churches, although separated from us, yet possess true sacraments and above all, by apostolic succession, the priesthood and the Eucharist, whereby they are linked with us in closest intimacy. Therefore some worship in common (communicatio in sacris), given suitable circumstances and the approval of Church authority, is not only possible but to be encouraged.
Moreover, in the East are found the riches of those spiritual traditions which are given expression especially in monastic life. There from the glorious times of the holy Fathers, monastic spirituality flourished which, then later flowed over into the Western world, and there provided the source from which Latin monastic life took its rise and has drawn fresh vigor ever since. Catholics therefore are earnestly recommended to avail themselves of the spiritual riches of the Eastern Fathers which lift up the whole man to the contemplation of the divine.
The very rich liturgical and spiritual heritage of the Eastern Churches should be known, venerated, preserved and cherished by all. They must recognize that this is of supreme importance for the faithful preservation of the fullness of Christian tradition, and for bringing about reconciliation between Eastern and Western Christians.
All this heritage of spirituality and liturgy, of discipline and theology, in its various traditions, this holy synod declares to belong to the full Catholic and apostolic character of the Church. We thank God that many Eastern children of the Catholic Church, who preserve this heritage, and wish to express it more faithfully and completely in their lives, are already living in full communion with their brethren who follow the tradition of the West.
II. Separated Churches and Ecclesial Communities in the West
However, since these Churches and ecclesial Communities, on account of their different origins, and different teachings in matters of doctrine on the spiritual life, vary considerably not only with us, but also among themselves, the task of describing them at all adequately is extremely difficult; and we have no intention of making such an attempt here.
Although the ecumenical movement and the desire for peace with the Catholic Church have not yet taken hold everywhere, it is our hope that ecumenical feeling and mutual esteem may gradually increase among all men.
It must however be admitted that in these Churches and ecclesial Communities there exist important differences from the Catholic Church, not only of an historical, sociological, psychological and cultural character, but especially in the interpretation of revealed truth. To make easier the ecumenical dialogue in spite of these differences, we wish to set down some considerations which can, and indeed should, serve as a basis and encouragement for such dialogue.
While invoking the Holy Spirit, they seek in these very Scriptures God as it were speaking to them in Christ, Whom the prophets foretold, Who is the Word of God made flesh for us. They contemplate in the Scriptures the life of Christ and what the Divine Master taught and did for our salvation, especially the mysteries of His death and resurrection.
But while the Christians who are separated from us hold the divine authority of the Sacred Books, they differ from ours-some in one way, some in another-regarding the relationship between Scripture and the Church. For, according to Catholic belief, the authentic teaching authority of the Church has a special place in the interpretation and preaching of the written word of God.
But Sacred Scriptures provide for the work of dialogue an instrument of the highest value in the mighty hand of God for the attainment of that unity which the Saviour holds out to all.
Baptism therefore establishes a sacramental bond of unity which links all who have been reborn by it. But of itself Baptism is only a beginning, an inauguration wholly directed toward the fullness of life in Christ. Baptism, therefore, envisages a complete profession of faith, complete incorporation in the system of salvation such as Christ willed it to be, and finally complete ingrafting in eucharistic communion.
Though the ecclesial Communities which are separated from us lack the fullness of unity with us flowing from Baptism, and though we believe they have not retained the proper reality of the eucharistic mystery in its fullness, especially because of the absence of the sacrament of Orders, nevertheless when they commemorate His death and resurrection in the Lord‘s Supper, they profess that it signifies life in communion with Christ and look forward to His coming in glory. Therefore the teaching concerning the Lord‘s Supper, the other sacraments, worship, the ministry of the Church, must be the subject of the dialogue.
Their faith in Christ bears fruit in praise and thanksgiving for the blessings received from the hands of God. Among them, too, is a strong sense of justice and a true charity toward their neighbor. This active faith has been responsible for many organizations for the relief of spiritual and material distress, the furtherance of the education of youth, the improvement of the social conditions of life, and the promotion of peace throughout the world.
While it is true that many Christians understand the moral teaching of the Gospel differently from Catholics, and do not accept the same solutions to the more difficult problems of modern society, nevertheless they share our desire to stand by the words of Christ as the source of Christian virtue, and to obey the command of the Apostle: „And whatever you do, in word or in work, do all in the name of the Lord Jesus Christ, giving thanks to God the Father through Him“ (Col. 3:17). For that reason an ecumenical dialogue might start with discussion of the application of the Gospel to moral conduct.
It is the urgent wish of this Holy Council that the measures undertaken by the sons of the Catholic Church should develop in conjunction with those of our separated brethren so that no obstacle be put in the ways of divine Providence and no preconceived judgments impair the future inspirations of the Holy Spirit. The Council moreover professes its awareness that human powers and capacities cannot achieve this holy objective-the reconciling of all Christians in the unity of the one and only Church of Christ. It is because of this that the Council rests all its hope on the prayer of Christ for the Church, on our Father‘s love for us, and on the power of the Holy Spirit. „And hope does not disappoint, because God‘s love has been poured into our hearts through the Holy Spirit, who has been given to us“ (Rom. 5:5).
Each and all these matters which are set forth in this Decree have been favorably voted on by the Fathers of the Council. And We, by the apostolic authority given Us by Christ and in union with the Fathers, approve, decree and establish them in the Holy Spirit and command that they be promulgated for the glory of God.
Rome, at St. Peter‘s, November 21, 1964
I, Paul, Bishop of the Catholic Church
There follow the signatures of the Fathers.