Nicene and Post-Nicene Fathers, Ser. II, Vol. XI:
The Works of John Cassian.: Chapter VI. Once more he challenges him to the profession of the Creed of Antioch.

Chapter VI.

Once more he challenges him to the profession of the Creed of Antioch.

The Creed then, O you heretic, of which we gave the text above, though it is that of all the churches (for the faith of all is but one) is yet specially that of the city and Church of Antioch, i.e., of that Church in which you were brought up, instructed, and regenerated. The faith of this Creed brought you to the fountain of life, to saving regeneration, to the grace of the Eucharist, to the Communion of the Lord: And what more! Alas for the grievous and mournful complaint! Even to the ministerial office, the height of the presbyterate, the dignity of the priesthood. Do you, you wretched madman, think that this is a light or trivial matter? Do you not see what you have done? Into what a depth you have plunged yourself? In losing the faith of the Creed, you have lost everything that you were. For the mysteries of the priesthood and of your salvation rested on the truth of the Creed. Can you possibly deny that? I say that you have denied your very self. But perhaps you think that you cannot deny yourself. Let us look at the text of the Creed; that if you say what you used to do, you may not be refuted, but if you say things widely different and contrary, you may not look to be confuted by me, as you have condemned yourself already. For if you now maintain something else than what is in the Creed and what you formerly maintained yourself, how can you help ascribing your punishment to nobody but yourself, when you see that the opinion of everybody else about you is the same as your own? “I believe,” the Creed says, “in one God, the Father Almighty, Maker of all things visible and invisible; and in the Lord Jesus Christ, His only begotten Son, the first-born of every creature; Begotten of Him before all worlds, and not made.” It is well that you should first reply to this: Do you confess this of Jesus Christ the Son of God, or do you deny it? If you confess it, everything is right enough. But if not, how do you now deny what you yourself formerly confessed? Choose then which you will: Of two things one must follow; viz., that that same confession of yours, if it still holds good, should alone set you free, or if you deny it, be the first to condemn you. For you said in the Creed: “I believe in one Lord Jesus Christ His only begotten Son, and the first-born of every creature.” If the Lord Jesus Christ is the only begotten, and the first-born of every creature, then by our own confession He is certainly God. For no other is the only begotten and first-born of every creature but the only begotten Son of God: as He is the first-born of the creatures, so He is also God the Creator of all. And how can you say that He was a mere man at His birth from the Virgin, whom you confessed to be God before the world. Next the Creed says: “Begotten of the Father before all worlds, and not made.” This Creed was uttered by you. You said by your Creed, that Jesus Christ was begotten before the worlds of God the Father, and not made. Does the Creed say anything about those phantasms, of which you now rave? Did you yourself say anything about them? Where is the statue? Where that instrument of yours, I pray? For God forbid that this should be another’s and not yours. Where is it that you assert that the Lord Jesus Christ is like a statue, and so you think that He ought to be worshipped not because He is God, but because He is the image of God; and out of the Lord of glory you make an instrument, and blasphemously say that He ought to be adored not for His own sake, but for the sake of Him who (as it were) breathes in Him and sounds through Him? You said in the Creed that the Lord Jesus Christ was begotten of the Father before all worlds, and not made: and this certainly belongs to none but the only begotten Son of God: that His birth should not be a creation, and that He could be said simply to be begotten, not made: for it is contrary to the nature of things and to His honour that the Creator of all should be believed to be a creature: and that He, the author of all things that have a commencement, should Himself have a beginning, as all things began from Him. And so we say that He was begotten p. 595 not made: for His generation was unique and no ordinary creation. And since He is God, begotten of God, the Godhead of Him who is begotten must have everything complete which the majesty of Him who begat has.