SESSION 13 30 November 1444

[Bull of union with the Syrians]

Eugenius, bishop, servant of the servants of God, for an everlasting record. In these our days the ineffable clemency of divine mercy bestows on his holy church many and marvellous gifts which are much greater than we could have asked for or envisaged. Hence we see that the orthodox faith is expanded, new peoples daily return to the obedience of the apostolic see and reasons for joy and exaltation are daily being multiplied for us and all Christ's faithful, in such wise that we are deservedly incited time and again to say in jubilation with the prophet to the faithful peoples: Come, let us exult in the Lord, let us hail the God who saves us, for the Lord is great and most worthy of praise in the city of our God, on his holy mountain. It is true that in the catholic church, which is the city of God on the holy mountain and is founded on the authority of the apostolic see and Peter, God, whose omnipotence and wisdom knows no limits, has always worked great and inscrutable deeds. But the singular and special gift which the ineffable providence of its founder bestowed on it is that the orthodox faith, which alone gives life to and sanctifies the human race, should abide for ever on that holy mountain in a unique and unchangeable profession of faith and that dissents, which arise against the church from the variety of earthly opinions and separate people off from the firmness of that rock, should return to that mountain and be exterminated and eradicated. Whence it comes about that the peoples and nations thronging to its bosom agree with it in one truth of faith. Assuredly it is not from our merit that the immensity of divine goodness has granted us to behold these great sublime and marvellous gifts of God. His benevolence and condescension alone have granted that after the union of the Greeks in the sacred ecumenical council of Florence, who were seen to differ from the Roman church in some articles, and after the return of the Armenians and the Jacobites, who were entangled in various opinions, they should at last, having abandoned all dissent, come together into the one right way of truth. Behold now again with the Lord's help other nations have gathered from afar, inhabitants of Mesopotamia between the Tigris and the Euphrates, whose thinking about the procession of the holy Spirit and some other articles had gone astray.

Great, then, for us and for all Christ's faithful is the reason for rejoicing. For with the Lord's approval the most illustrious profession of the Roman church about the truth of the faith, which has always been pure from all stain of error shines with new beams also in the east beyond the bounds of the Euphrates inasmuch as it has drawn our venerable brother Abdala, archbishop of Edessa and legate of our venerable brother Ignatius, patriarch of the Syrians, and of his whole nation, to us here in bountiful Rome and to this sacred ecumenical Lateran council and has bidden him humbly and devoutly to petition that we give to them the rule of faith which the holy Roman church professes. Among all the preoccupations of the holy apostolic see, we hold, as we have always done, our first and chiefest care to be the defence of the faith, the extermination of heresies and the propagation of the orthodox faith. Therefore we selected some of our venerable brethren, cardinals of the holy Roman church, who in turn co-opted from this sacred council some masters in holy scripture, to confer with the aforesaid archbishop about the difficulties, doubts and errors of that nation, to examine him in person and to open to him the rule of catholic truth, and finally to instruct and inform him fully about the integrity of the faith of the Roman church.

They found him orthodox on all points of faith and practice except three articles: namely, the procession of the holy Spirit, the two natures in Jesus Christ our saviour, the two wills and principles of action in him. They laid before him the truth of the orthodox faith, opened up the meaning of the sacred scriptures, adduced the testimonies of holy doctors and added telling and pertinent reasons.

When the archbishop had understood the doctrine on these points, he affirmed that all his doubts had been completely answered. He professed that he thought he fully understood the truth of the faith as regards both the procession of the holy Spirit and the two natures, two wills and two principles of action in our lord Jesus Christ. Moreover he declared that he would accept, in the name of the aforesaid patriarch and of the whole nation and of himself, the whole faith and all the teaching which we, with the approval of this sacred council, would propose to him.

For this reason we were filled with exultation in Christ and poured out immense gratitude to our God, since we are seeing our desire for the salvation of that nation fulfilled.

After careful discussion with our brethren and the sacred council, we decided, with the approval of the same council, to propose and assign to the said archbishop, who will accept it in the name of the above persons, the faith and doctrine which the holy Roman mother church holds.

This, then, is the faith which the holy Roman mother church has always held, preached and taught and which she now holds, preaches, professes and teaches. This is the faith, as regards those three articles, which we decree that the said archbishop Abdala, on behalf and in the name of the said patriarch of the Syrians and of all that nation and of himself, shall accept and shall keep for ever. First, that the holy Spirit is eternally from the Father and the Son, and has his essence and his subsistent being from the Father together with the Son, and proceeds from both eternally as from one principle and a single spiration.

Also it holds, professes and teaches that one and the same Son of God and of man, our lord Jesus Christ, is perfect in divinity and perfect in humanity; true God and true man, of a rational soul and a body; consubstantial with the Father as regards his divinity, consubstantial with us as regards his humanity; like us in all respects except for sin; begotten before the ages from the Father, and in the last days the same born according to his humanity for us and our salvation from Mary the virgin mother of God; one and the same Christ true only-begotten Son of God, acknowledged in two natures which undergo no confusion, no change, no division, no separation; at no point was the difference between the natures taken away through the union, but rather the property of both natures is preserved and comes together into a single person and a single subsistent being; he is not parted or divided into two persons, but is one and the same Son of God and of man, our lord Jesus Christ.

Also it believes, professes and teaches in the one lord Jesus Christ two natural principles of action which undergo no division, no change, no separation, no confusion, in accordance with the teaching of the holy fathers; and two natural wills one divine, the other human, not in opposition, but his human will subject to his divine and all powerful will. For in the same way that his most holy animate flesh was made divine, not destroyed, but remained in its own limit and category, so his human will was made divine, not destroyed, but rather was preserved and perfected.

We decree that the said archbishop Abdala ought, in the name of the above persons, to accept this faith, to hold it in his heart and to profess it with his mouth. Further we ordain and decree that he ought to receive and embrace, in the name of the above persons, whatever has been defined and established at various times by the holy Roman church, especially the decrees on the Greeks, the Armenians and the Jacobites, which were issued in the sacred ecumenical council of Florence and which, since Archbishop Abdala has carefully read them translated into Arabic and praised them, we have given to him, in the name of the above persons, for a wider and more complete instruction on everything; that whatever doctors and holy fathers the holy Roman church approves and accepts, he should, in the name of the above persons, approve and accept; and that whatever persons and other things she condemns and rejects, he should, in the name of the above persons, hold as condemned and rejected; promising on oath as a true son of obedience, in the name of the above persons, always devoutly and faithfully to obey the regulations and orders of the said apostolic see. If anyone however . . . Let nobody therefore . . .