After this he shows that the Son, who truly is, and is in the bosom of the Father, is simple and uncompounded, and that, He Who redeemed us from bondage is not under dominion of the Father, nor in a state of slavery: and that otherwise not He alone, but also the Father Who is in the Son and is One with Him, must be a slave; and that the word being is formed from the word to be. And having excellently and notably discussed all these matters, he concludes the book
But not yet has the most grievous part of his profanity been examined, which the sequel of his treatise goes on to add. Well, let us consider his words sentence by sentence. Yet I know not how I can dare to let my mouth utter the horrible and godless language of him who fights against Christ. For I fear lest, like some baleful drugs, the remnant of the pernicious bitterness should be deposited upon the lips through which the words pass. “He that comes unto God,” says the Apostle, “must believe that He is.” Accordingly, true existence is the special distinction of Godhead. But Eunomius makes out Him Who truly is, either not to exist at all, or not to exist in a proper sense, which is just the same as not existing at all; for he who does not properly exist, does not really exist at all; as, for example, he is said to “run” in a dream who in that state fancies he is exerting himself in the race, while, since he untruly acts the semblance of the real race, his fancy that he is running is not for this reason a race. But even though in an inexact sense it is so called, still the name is given to it falsely. Accordingly, he who dares to assert that the Only-begotten God either does not properly exist, or does not exist at all, manifestly blots out of his creed all faith in Him. For who can any longer believe in something non-existent? Or who would resort to Him Whose being has been shown by the enemies of the true Lord to be improper and unsubstantial?
But that our statement may not be thought to be unfair to our opponents, I will set side by side with it the language of the impious persons, which runs as follows:— “He Who is in the bosom of the Existent, and Who is in the beginning and is with God, not being, or at all events not being in a strict sense, even though Basil, neglecting this distinction and addition, uses the title of 'Existent' interchangeably, contrary to the truth—” What do you say? That He Who is in the Father is not, and that He Who is in the beginning, and Who is in the bosom of the Father, is not, for this very reason, that He is in the beginning and is in the Father, and is discerned in the bosom of the Existent, and hence does not in a strict sense exist, because He is in the Existent? Alas for the idle and irrational tenets! Now for the first time we have heard this piece of vain babbling—that the Lord, by Whom are all things, does not in a strict sense exist. And we have not yet got to the end of this appalling statement; but something yet more startling remains behind, that he not only affirms that He does not exist, or does not strictly speaking exist, but also that the Nature in which He is conceived to reside is various and composite. For he says “not being, or not being simple.” But that to which simplicity does not belong is manifestly various and composite. How then can the same Person be at once non-existent and composite in essence? For one of two alternatives they must choose: if they predicate of Him non-existence they cannot speak of Him as composite, or if they affirm Him to be composite they cannot rob Him of existence. But that their blasphemy may assume many and varied shapes, it jumps at every godless notion when it wishes to contrast Him with the existent, affirming that, strictly speaking, He does not exist, and in His relation to the uncompounded Nature denying Him the attribute of simplicity:— “not existing, not existing simply, not existing in the strict sense.” Who among those who have transgressed the word and forsworn the Faith was ever so lavish in utterances denying the Lord? He has stood up in rivalry with the divine proclamation of John. For as often as the latter has attested “was” of the Word, so often does he apply to Him Who is an opposing “was not.” And he contends against the holy lips of our father Basil, bringing against him the charge that he “neglects these distinctions,” when he says that He Who is in the Father, and in the beginning, and in the bosom of the Father, exists, holding the view that the addition of “in the beginning,” and “in the bosom of the Father,” bars the real existence of Him Who is. Vain learning! What things the teachers of deceit teach! What strange doctrines they introduce to their hearers! They instruct them that that which is in something else does not exist! So, Eunomius, since your heart and brain are within you, neither of them, according to your distinction, exists. For if the Only-begotten God does not, strictly speaking, exist, for this reason, that He is in the bosom of the Father, then everything that is in something else is thereby excluded from existence. But certainly your heart exists in you, and not independently; therefore, according to your view, you must either say that it does not exist at all, or that it does not exist in the strict sense. However, the ignorance and profanity of his language are so gross and so glaring, as to be obvious even before our argument, at all events to all persons of sense: but that his folly as well as his impiety may be more manifest, we will add thus much to what has gone before. If one may only say that that in the strict sense exists, of which the word of Scripture attests the existence detached from all relation to anything else, why do they, like those who carry water, perish with thirst when they have it in their power to drink? Even this man, though he had at hand the antidote to his blasphemy against the Son, closed his eyes and ran past it as though fearing to be saved, and charges Basil with unfairness for having suppressed the qualifying words, and for only quoting the “was” by itself, in reference to the Only-Begotten. And yet it was quite in his power to see what Basil saw and what every one who has eyes sees. And herein the sublime John seems to me to have been prophetically moved, that the mouths of those fighters against Christ might be stopped, who on the ground of these additions deny the existence, in the strict sense, of the Christ, saying simply and without qualification “The Word was God,” and was Life, and was Light, not merely speaking of Him as being in the beginning, and with God, and in the bosom of the Father, so that by their relation the absolute existence of the Lord should be done away. But his assertion that He was God, by this absolute declaration detached from all relation to anything else, cuts off every subterfuge from those who in their reasonings run into impiety; and, in addition to this, there is moreover something else which still more convincingly proves the malignity of our adversaries. For if they make out that to exist in something is an indication of not existing in the strict sense, then certainly they allow that not even the Father exists absolutely, as they have learned in the Gospel, that just as the Son abides in the Father, so the Father abides in the Son, according to the words of the Lord. For to say that the Father is in the Son is equivalent to saying that the Son is in the bosom of the Father. And in passing let us make this further inquiry. When the Son, as they say, “was not,” what did the bosom of the Father contain? For assuredly they must either grant that it was full, or suppose it to have been empty. If then the bosom was full, certainly the Son was that which filled the bosom. But if they imagine that there was some void in the bosom of the Father, they do nothing else than assert of Him perfection by way of augmentation, in the sense that He passed from the state of void and deficiency to the state of fullness and perfection. But “they knew not nor understood,” says David of those that “walk on still in darkness.” For he who has been rendered hostile to the true Light cannot keep his soul in light. For this reason it was that they did not perceive lying ready to their hand in logical sequence that which would have corrected their impiety, smitten, as it were, with blindness, like the men of Sodom.
Source: Against Eunomius (New Advent)