Part 1. History of the Councils
5 As to the Nicene Council, it was not a common meeting, but convened upon a pressing necessity, and for a reasonable object. The Syrians, Cilicians, and Mesopotamians, were out of order in celebrating the Feast, and kept Easter with the Jews; on the other hand, the Arian heresy had risen up against the Catholic Church, and found supporters in Eusebius and his fellows, who were both zealous for the heresy, and conducted the attack upon religious people. This gave occasion for an Ecumenical Council, that the feast might be everywhere celebrated on one day, and that the heresy which was springing up might be anathematized. It took place then; and the Syrians submitted, and the Fathers pronounced the Arian heresy to be the forerunner of Antichrist, and drew up a suitable formula against it. And yet in this, many as they are, they ventured on nothing like the proceedings of these three or four men. Without pre-fixing Consulate, month, and day, they wrote concerning Easter, 'It seemed good as follows,' for it did then seem good that there should be a general compliance; but about the faith they wrote not, 'It seemed good,' but, 'Thus believes the Catholic Church;' and thereupon they confessed how they believed, in order to show that their own sentiments were not novel, but Apostolical; and what they wrote down was no discovery of theirs, but is the same as was taught by the Apostles.
6. But the Councils which they are now setting in motion, what colourable pretext have they? If any new heresy has risen since the Arian, let them tell us the positions which it has devised, and who are its inventors? And in their own formula, let them anathematize the heresies antecedent to this Council of theirs, among which is the Arian, as the Nicene Fathers did, that it may appear that they too have some cogent reason for saying what is novel. But if no such event has happened, and they have it not to show, but rather they themselves are uttering heresies, as holding Arius's irreligion, and are exposed day by day, and day by day shift their ground, what need is there of Councils, when the Nicene is sufficient, as against the Arian heresy, so against the rest, which it has condemned one and all by means of the sound faith? For even the notorious Aetius, who was surnamed godless, vaunts not of the discovering of any mania of his own, but under stress of weather has been wrecked upon Arianism, himself and the persons whom he has beguiled. Vainly then do they run about with the pretext that they have demanded Councils for the faith's sake; for divine Scripture is sufficient above all things; but if a Council be needed on the point, there are the proceedings of the Fathers, for the Nicene Bishops did not neglect this matter, but stated the doctrine so exactly, that persons reading their words honestly, cannot but be reminded by them of the religion towards Christ announced in divine Scripture.
7. Having therefore no reason on their side, but being in difficulty whichever way they turn, in spite of their pretences, they have nothing left but to say; 'Forasmuch as we contradict our predecessors, and transgress the traditions of the Fathers, therefore we have thought good that a Council should meet; but again, whereas we fear lest, should it meet at one place, our pains will be thrown away, therefore we have thought good that it be divided into two; that so when we put forth our documents to these separate portions, we may overreach with more effect, with the threat of Constantius the patron of this irreligion, and may supersede the acts of Nicæa, under pretence of the simplicity of our own documents.' If they have not put this into words, yet this is the meaning of their deeds and their disturbances. Certainly, many and frequent as have been their speeches and writings in various Councils, never yet have they made mention of the Arian heresy as objectionable; but, if any present happened to accuse the heresies, they always took up the defence of the Arian, which the Nicene Council had anathematized; nay, rather, they cordially welcomed the professors of Arianism. This then is in itself a strong argument, that the aim of the present Councils was not truth, but the annulling of the acts of Nicæa; but the proceedings of them and their friends in the Councils themselves, make it equally clear that this was the case:— For now we must relate everything as it occurred.
8. When all were in expectation that they were to assemble in one place, whom the Emperor's letters convoked, and to form one Council, they were divided into two; and, while some betook themselves to Seleucia called the Rugged, the others met at Ariminum, to the number of those four hundred bishops and more, among whom were Germinius, Auxentius, Valens, Ursacius, Demophilus, and Gaius. And, while the whole assembly was discussing the matter from the Divine Scriptures, these men produced a paper, and, reading out the Consulate, they demanded that it should be preferred to every Council, and that no questions should be put to the heretics beyond it, nor inquiry made into their meaning, but that it should be sufficient by itself—and what they had written ran as follows:—
The Catholic Faith was published in the presence of our Master the most religious and gloriously victorious Emperor, Constantius, Augustus, the eternal and august, in the Consulate of the most illustrious Flavii, Eusebius and Hypatius, in Sirmium on the 11th of the Calends of June.
We believe in one Only and True God, the Father Almighty, Creator and Framer of all things:
And in one Only-begotten Son of God, who, before all ages, and before all origin, and before all conceivable time, and before all comprehensible essence, was begotten impassibly from God: through whom the ages were disposed and all things were made; and Him begotten as the Only-begotten, Only from the Only Father, God from God, like to the Father who begot Him, according to the Scriptures; whose origin no one knows save the Father alone who begot Him. We know that He, the Only-begotten Son of God, at the Father's bidding came from the heavens for the abolishment of sin, and was born of the Virgin Mary, and conversed with the disciples, and fulfilled the Economy according to the Father's will, and was crucified, and died and descended into the parts beneath the earth, and regulated the things there, Whom the gate-keepers of hell saw and shuddered; and He rose from the dead the third day, and conversed with the disciples, and fulfilled all the Economy, and when the forty days were full, ascended into the heavens, and sits on the right hand of the Father, and is coming in the last day of the resurrection in the glory of the Father, to render to every one according to his works.
And in the Holy Ghost, whom the Only-begotten of God Himself, Jesus Christ, had promised to send to the race of men, the Paraclete, as it is written, 'I go to My Father, and I will ask the Father, and He shall send unto you another Paraclete, even the Spirit of Truth. He shall take of Mine and shall teach and bring to your remembrance all things'.
But whereas the term 'essence,' has been adopted by the Fathers in simplicity, and gives offense as being misconceived by the people, and is not contained in the Scriptures, it has seemed good to remove it, that it be never in any case used of God again, because the divine Scriptures nowhere use it of Father and Son. But we say that the Son is like the Father in all things, as also the Holy Scriptures say and teach.
Source: De Synodis (New Advent)