The Union of Brest was the 1595-1596 decision of the majority of Orthodox bishops in the region of what is modern Ukraine, Poland and Belarus to depart from the Orthodox Church and to seek reunion with the Pope of Rome. They and Rome agreed to the below 33 conditions of union and, from that union, the Belarusian Greek-Catholic Church and Ukrainian Greek-Catholic Church emerged.
Brief History of the Union of Brest (1595)
[These articles were accepted by the hierarchy of the Church in Kiev in three languages: Ukrainian, Polish, and Latin. It is on this basis that the Church of Kiev is in communion with the Roman Catholic Church.
The articles frequently refer to the King of Poland. The function of the King of Poland vis-à-vis the Greek-Catholic Church were assumed by the Austrian Emperor. As there is no longer a King or Emperor, and the Greek-Catholic Church is certainly not state-supported in Ukraine, these functions revert to the synod or lapse entirely.]
We require prior guarantees of these articles from the Romans before we enter into union with the Roman Church.
1.—Since there is a quarrel between the Romans and Greeks about the procession of the Holy Spirit, which greatly impede unity really for no other reason than that we do not wish to understand one another—we ask that we should not be compelled to any other creed but that we should remain with that which was handed down to us in the Holy Scriptures, in the Gospel, and in the writings of the holy Greek Doctors, that is, that the Holy Spirit proceeds, not from two sources and not by a double procession, but from one origin, from the Father through the Son.
2.—That the divine worship and all prayers and services of Orthros, Vespers, and the night services shall remain intact (without any change at all) for us according to the ancient custom of the Eastern Church, namely: the Holy Liturgies of which there are three, that of Saint Basil, that of Saint Chrysostom, and that of Epiphanius which is served during the Great Lent with Presanctified Gifts, and all other ceremonies and services of our Church, as we have had them until now, for in Rome these same services are kept within the obedience of the Supreme Pontiff, and that these services should be in our own language.
3.—That the Mysteries of the Most Holy Body and Blood of Our Lord Jesus Christ should be retained entirely as we have been accustomed until now, under the species of bread and wine; that this should remain among us eternally the same and unchangeable.
4.—That the Mystery of Holy Baptism and its form should remain among us unchanged as we have served it until now, without any addition.
5.—We shall not debate about purgatory, but we entrust ourselves to the teaching of the Holy Church.
6.—We will accept the new calendar, if the old one cannot be, but without any violation of the Paschalia [the Easter cycle] and our other feasts as they were in the time of unity, because we have some special feasts which the Romans do not have; on the sixth of January we celebrate the memory of the Baptism of the Lord Christ and the first revelation of the One God in Trinity. We call this feast Theophany, and on this day we have a special service of the Blessing of Waters.
7.—That we should not be compelled to take part in processions on the day of Corpus Christi—that we should not have to make such processions with our Mysteries inasmuch as our use of the Mysteries is different.
8.—Likewise that we should not be compelled to have the blessing of fire, the use of wooden clappers, and similar ceremonies before Easter, for we have not had such ceremonies in our Church until now, but that we should maintain our ceremonies according to the rubrics and the Typicon of our Church.
9.—That the marriages of priests remain intact, except for bigamists.
10.—That the metropolitanate, the episcopate, and other ecclesiastical dignities shall be conferred on no one except the Rus' people or Greeks, who must be of our religion. And since our Canons require that the Metropolitain, the Bishops, and so on, first elected by the clergy, must be worthy people, we ask the King's Grace that the election be free, leaving intact the authority of the King's Grace to appoint the one whom he pleases. This means that as soon as someone has died we should elect four candidates, and the King's Grace will freely chose whom he wishes from among the four. This is necessary, especially so that the persons named to such positions will be worthy and educated, for the King's Grace, who is not of the same religion, cannot know who is worthy of this, and thus it has happened that such uninstructed people were appointed that they were scarcely literate. If the King's Grace should wish to appoint a layman to these spiritual posts, the appointee must receive Holy Orders within no more than three months under pain of losing appointment, according to the Constitution of the Parliament of Grondo and the Articles of King Sigmund Augustus of blessed memory, approved by the present King's Grace, for at the moment there are some who hold certain spiritual appointments in their hands but do not receive Holy Orders even for years, justifying themselves with some sort of royal "exemptions". We ask that in future this should not be.
