Official Catholic teaching is far from anti-protestant.
There can be no ecumenism worthy of the name without a change of heart. For it is from renewal of the inner life of our minds,(28) from self-denial and an unstinted love that desires of unity take their rise and develop in a mature way. We should therefore pray to the Holy Spirit for the grace to be genuinely self-denying, humble. gentle in the service of others, and to have an attitude of brotherly generosity towards them. St. Paul says: "I, therefore, a prisoner for the Lord, beg you to lead a life worthy of the calling to which you have been called, with all humility and meekness, with patience, forbearing one another in love, eager to maintain the unity of the spirit in the bond of peace".(29) This exhortation is directed especially to those raised to sacred Orders precisely that the work of Christ may be continued. He came among us "not to be served but to serve".(30)
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".(31) 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.
28. Cf. Ep 4,24 29. Ep 4,1-3, 30. Mt 20,28, 31. 1Jn 1,10
This change of heart and holiness of life, along with public and private prayer for the unity of Christians, should be regarded as the soul of the whole ecumenical movement, and merits the name, "spiritual ecumenism."
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".(32)
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".(33)
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.
32. Jn 17,21, 33. Mt 18,20,
We must get to know the outlook of our separated brethren. To achieve this purpose, study is of necessity required, and this must be pursued with a sense of realism and good will. Catholics, who already have a proper grounding, need to acquire a more adequate understanding of the respective doctrines of our separated brethren, their history, their spiritual and liturgical life, their religious psychology and general background. Most valuable for this purpose are meetings of the two sides-especially for discussion of theological problems-where each can treat with the other on an equal footing-provided that those who take part in them are truly competent and have the approval of the bishops. From such dialogue will emerge still more clearly what the situation of the Catholic Church really is. In this way too the outlook of our separated brethren will be better understood, and our own belief more aptly explained.
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UNITATIS REDINTEGRATIO
