4 For this mad heresy does deny; it denies the mystery of the true faith by means of statements borrowed from our confession, which it employs for its own godless ends. The confession of their misbelief, which I have already cited in an earlier book, begins thus:— We confess one God, alone unmade, alone eternal, alone unoriginate, alone true, alone possessing immortality, alone good, alone mighty. Thus they parade the opening words of our own confession, which runs, “One God, alone unmade and alone un-originate,” that this semblance of truth may serve as introduction to their blasphemous additions.
For, after a multitude of words in which an equally insincere devotion to the Son is expressed, their confession continues, “God's perfect creature, but not as one of His other creatures, His Handiwork, but not as His other works.” And again, after an interval in which true statements are occasionally interspersed in order to veil their impious purpose of alleging, as by sophistry they try to prove, that He came into existence out of nothing, they add, “He, created and established before the worlds, did not exist before He was born.”
And lastly, as though every point of their false doctrine, that He is to be regarded neither as Son nor as God, were guarded impregnably against assault, they continue:— “As to such phrases as from Him, and from the womb, and I went out from the Father and have come, if they be understood to denote that the Father extends a part and, as it were, a development of that one substance, then the Father will be of a compound nature and divisible and changeable and corporeal, according to them; and thus, as far as their words go, the incorporeal God will be subjected to the properties of matter.”
But, as we are now about to cover the whole ground once more, employing this time the language of the Gospels as our weapon against this most godless heresy, it has seemed best to repeat here, in the sixth book, the whole heretical document, though we have already given a full copy of it in the fourth, in order that our opponents may read it again, and compare it, point by point, with our reply, and so be forced, however reluctant and argumentative, by the clear teaching of the Evangelists and Apostles, to recognise the truth. The heretical confession is as follows:—
Source: On the Trinity (New Advent)