Answer to the question he is always asking, Can He who is be begotten?
But this thinker in his exceeding subtlety contravenes this statement; he sunders the being of the Only-begotten from the Father's nature, on the ground of one being Generated, the other Ungenerate; and although there are such a number of names which with reverence may be applied to the Deity, and all of them suitable to both Persons equally, he pays no attention to anyone of them, because these others indicate that in which Both participate; he fastens on the name Ungenerate, and that alone; and even of this he will not adopt the usual and approved meaning; he revolutionizes the conception of it, and cancels its common associations.
Whatever can be the reason of this? For without some very strong one he would not wrest language away from its accepted meaning, and innovate by changing the signification of words. He knows perfectly well that if their meaning was confined to the customary one he would have no power to subvert the sound doctrine; but that if such terms are perverted from their common and current acceptation, he will be able to spoil the doctrine along with the word. For instance (to come to the actual words which he misuses), if, according to the common thinking of our Faith he had allowed that God was to be called Ungenerate only because He was never generated, the whole fabric of his heresy would have collapsed, with the withdrawal of his quibbling about this Ungenerate.
If, that is, he was to be persuaded, by following out the analogy of almost all the names of God in use for the Church, to think of the God over all as Ungenerate, just as He is invisible, and passionless, and immaterial; and if he was agreed that in every one of these terms there was signified only that which in no way belongs to God— body, for instance, and passion and colour, and derivation from a cause— then, if his view of the case had been like that, his party's tenet of the Unlikeness would lose its meaning; for in all else (except the Ungeneracy) that is conceived concerning the God of all even these adversaries allow the likeness existing between the Only-begotten and the Father.
But to prevent this, he puts the term Ungenerate in front of all these names indicating God's transcendent nature; and he makes this one a vantage-ground from which he may sweep down upon our Faith; he transfers the contrariety between the actual expressions 'Generated' and 'Ungenerate' to the Persons themselves to whom these words apply; and thereby, by this difference between the words he argues by a quibble for a difference between the Beings; not agreeing with us that Generated is to be used only because the Son was generated, and Ungenerate because the Father exists without having been generated; but affirming that he thinks the former has acquired existence by having been generated; though what sort of philosophy leads him to such a view I cannot understand.
If one were to attend to the mere meanings of those words by themselves, abstracting in thought those Persons for whom the names are taken to stand, one would discover the groundlessness of these statements of theirs. Consider, then, not that, in consequence of the Father being a conception prior to the Son (as the Faith truly teaches), the order of the names themselves must be arranged so as to correspond with the value and order of that which underlies them; but regard them alone by themselves, to see which of them (the word, I repeat, not the Reality which it represents) is to be placed before the other as a conception of our mind; which of the two conveys the assertion of an idea, which the negation of the same; for instance (to be clear, I think similar pairs of words will give my meaning), Knowledge, Ignorance— Passion, Passionlessness— and suchlike contrasts, which of them possess priority of conception before the others?
Those which posit the negation, or those which posit the assertion of the said quality? I take it the latter do so. Knowledge, anger, passion, are conceived of first; and then comes the negation of these ideas. And let no one, in his excess of devotion, blame this argument, as if it would put the Son before the Father. We are not making out that the Son is to be placed in conception before the Father, seeing that the argument is discriminating only the meanings of 'Generated,' and 'Ungenerate.'
So Generation signifies the assertion of some reality or some idea; while Ungeneracy signifies its negation; so that there is every reason that Generation must be thought of first. Why, then, do they insist herein on fixing on the Father the second, in order of conception, of these two names; why do they keep on thinking that a negation can define and can embrace the whole substance of the term in question, and are roused to exasperation against those who point out the groundlessness of their arguments?
Source: Against Eunomius (New Advent)