(from Athanasius, De Synodis, 16. LNPF ser. 2, vol. 4, 458)
Our faith from our forefathers, which also we have learned from thee, Blessed Pope, is this:--We ackowledge One God, alone Ingenerate, alone Everlasting, alone Unbegun, alone True, alone having Immortality, alone Wise, alone Good, alone Sovereign; Judge, Governor, and Providence of all, unalterable and unchangeable, just and good, God of Law and Prophets and New Testament; who begat an Only-begotten Son before eternal times, through whom He has made both the ages and the universe; and begat Him, not in semblance, but in truth; and that He made Him subsist at His own will, unalterable and unchangeable; perfect creature of God, but not as one of the creatures; offspring, but not as one of things begotten; nor as Valentinus pronounced that the offspring of the Father was an issue; nor as Manichaeus taught that the offspring was a portion of the Father, one in essence; or as Sabellius, dividing the Monad, speaks of a Son-and-Father; nor as Hieracas, of one torch from another, or as a lamp divided in two; nor that He was was before, was afterwards generated or new-created into a Son, as thou too thyself, Blessed Pope, in the midst of the Church and in session has often condemned; but, as we say, at the will of God, created before times and ages, and gaining life and being from the Father, who gave subsistence to His glories together with Him. For the Father did not, in giving to Him the inheritance of all thigns, deprive Himself of what He has ingenerately in Himself; for He is the Fountain of all things. Thus there are Three Subsistences. And God, being the cause of all things, is Unbegun and altogether Sole, but the Son being begotten apart from time by the Father, and being created and founded before ages, was not before His generation, but being begotten apart from time before all things, alone was made to subsist by the Father. For He is not eternal or co-eternal or co-unoriginate with the Father, nor has He His being together with the Father, as some speak of relations, introducing two ingenerate beginnings, but God is before all things as being Monad and Beginning of all. Wherefore also He is before the Son; as we have learned also from they preaching in the midst of the Church. So far then as from God He has being, and glories, and life, and all things are delivered unto Him, in such sense is God His origin. For He is above Him, as being His God, and before Him. But if the terms 'from Him,' and 'from the womb,' and 'I came forth from the Father, and I am come' (Rom. xi. 36; Ps. cx. 3; John xvi. 28) be understood by some to mean as if a part of Him, one in essence or as an issue, then the Father is according to them compounded and divisible and alterable and material, and, as far as their belief goes, has the circumstances of a body, Who is the incorporeal God.