He then exposes argument about the Generate, and the product of making, and product of creation, and shows the impious nature of the language of Eunomius and Theognostus on the immediate and undivided character of the essence, and its relation to its creator and maker
Let us listen, then, to what he says. “One might reasonably say that the most proper and primary essence, and that which alone exists by the operation of the Father, admits for itself the appellations of 'product of generation,' 'product of making,' and 'product of creation.'” Who knows not that what separates the Church from heresy is this term, “product of creation,” applied to the Son? Accordingly, the doctrinal difference being universally acknowledged, what would be the reasonable course for a man to take who endeavours to show that his opinions are more true than ours? Clearly, to establish his own statement, by showing, by such proofs as he could, that we ought to consider that the Lord is created. Or omitting this, should he rather lay down a law for his readers that they should speak of matters of controversy as if they were acknowledged facts? For my own part, I think he should take the former course, and perhaps all who possess any share of intelligence demand this of their opponents, that they should, to begin with, establish upon some incontrovertible basis the first principle of their argument, and so proceed to press their theory by inferences. Now our writer leaves alone the task of establishing the view that we should think He is created, and goes on to the next steps, fitting on the inferential process of his argument to this unproved assumption, being just in the condition of those men whose minds are deep in foolish desires, with their thoughts wandering upon a kingdom, or upon some other object of pursuit. They do not think how any of the things on which they set their hearts could possibly be, but they arrange and order their good fortune for themselves at their pleasure, as if it were theirs already, straying with a kind of pleasure among non-existent things. So, too, our clever author somehow or other lulls his own renowned dialectic to sleep, and before giving a demonstration of the point at issue, he tells, as if to children, the tale of this deceitful and inconsequent folly of his own doctrine, setting it forth like a story told at a drinking-party. For he says that the essence which “exists by the operation of the Father” admits the appellation of “product of generation,” and of “product of making,” and of “product of creation.” What reasoning showed us that the Son exists by any constructive operation, and that the nature of the Father remains inoperative with regard to the Personal existence of the Son? This was the very point at issue in the controversy, whether the essence of the Father begot the Son, or whether it made Him as one of the external things which accompany His nature. Now seeing that the Church, according to the Divine teaching, believes the Only-begotten to be verily God, and abhors the superstition of polytheism, and for this cause does not admit the difference of essences, in order that the Godheads may not, by divergence of essence, fall under the conception of number (for this is nothing else than to introduce polytheism into our life)— seeing, I say, that the Church teaches this in plain language, that the Only-begotten is essentially God, very God of the essence of the very God, how ought one who opposes her decisions to overthrow the preconceived opinion? Should he not do so by establishing the opposing statement, demonstrating the disputed point from some acknowledged principle? I think no sensible man would look for anything else than this. But our author starts from the disputed points, and takes, as though it were admitted, matter which is in controversy as a principle for the succeeding argument. If it had first been shown that the Son had His existence through some operation, what quarrel should we have with what follows, that he should say that the essence which exists through an operation admits for itself the name of “product of making”? But let the advocates of error tell us how the consequence has any force, so long as the antecedent remains unestablished. For supposing one were to grant by way of hypothesis that man is winged, there will be no question of concession about what comes next: for he who becomes winged will fly in some way or other, and lift himself up on high above the earth, soaring through the air on his wings. But we have to see how he whose nature is not aerial could become winged, and if this condition does not exist, it is vain to discuss the next point. Let our author, then, show this to begin with, that it is in vain that the Church has believed that the Only-begotten Son truly exists, not adopted by a Father falsely so called, but existing according to nature, by generation from Him Who is, not alienated from the essence of Him that begot Him. But so long as his primary proposition remains unproved, it is idle to dwell on those which are secondary. And let no one interrupt me, by saying that what we confess should also be confirmed by constructive reasoning: for it is enough for proof of our statement, that the tradition has come down to us from our fathers, handed on, like some inheritance, by succession from the apostles and the saints who came after them. They, on the other hand, who change their doctrines to this novelty, would need the support of arguments in abundance, if they were about to bring over to their views, not men light as dust, and unstable, but men of weight and steadiness: but so long as their statement is advanced without being established, and without being proved, who is so foolish and so brutish as to account the teaching of the evangelists and apostles, and of those who have successively shone like lights in the churches, of less force than this undemonstrated nonsense?
Let us further look at the most remarkable instance of our author's cleverness; how, by the abundance of his dialectic skill, he ingeniously draws over to the contrary view the more simple sort. He throws in, as an addition to the title of “product of making,” and that of “product of creation,” the further phrase, “product of generation,” saying that the essence of the Son “admits these names for itself”; and thinks that, so long as he harangues as if he were in some gathering of topers, his knavery in dealing with doctrine will not be detected by any one. For in joining “product of generation” with “product of making,” and “product of creation,” he thinks that he stealthily makes away with the difference in significance between the names, by putting together what have nothing in common. These are his clever tricks of dialectic; but we mere laymen in argument do not deny that, so far as voice and tongue are concerned, we are what his speech sets forth about us, but we allow also that our ears, as the prophet says, are made ready for intelligent hearing. Accordingly, we are not moved, by the conjunction of names that have nothing in common, to make a confusion between the things they signify: but even if the great Apostle names together wood, hay, stubble, gold, silver, and precious stones, we reckon up summarily the number of things he mentions, and yet do not fail to recognize separately the nature of each of the substances named. So here, too, when “product of generation” and “product of making” are named together, we pass from the sounds to the sense, and do not behold the same meaning in each of the names; for “product of creation” means one thing, and “product of generation” another: so that even if he tries to mingle what will not blend, the intelligent hearer will listen with discrimination, and will point out that it is an impossibility for any one nature to “admit for itself” the appellation of “product of generation,” and that of “product of creation.” For, if one of these were true, the other would necessarily be false, so that, if the thing were a product of creation, it would not be a product of generation, and conversely, if it were called a product of generation, it would be alienated from the title of “product of creation.” Yet Eunomius tells us that the essence of the Son “admits for itself the appellations of 'product of generation,' 'product of making,' and 'product of creation'”!
Source: Against Eunomius (New Advent)