VI. So much for this point. What is their next objection, how full of contentiousness and impudence? He, they say, either voluntarily begot the Son, or else involuntarily. Next, as they think, they bind us on both sides with cords; these however are not strong, but very weak. For, they say, if it was involuntarily He was under the sway of some one, and who exercised this sway? And how is He, over whom it is exercised, God? But if voluntarily, the Son is a Son of Will; how then is He of the Father?— and they thus invent a new sort of Mother for him—the Will,— in place of the Father. There is one good point which they may allege about this argument of theirs; namely, that they desert Passion, and take refuge in Will. For Will is not Passion.
Secondly, let us look at the strength of their argument. And it were best to wrestle with them at first at close quarters. You yourself, who so recklessly assert whatever takes your fancy; were you begotten voluntarily or involuntarily by your father? If involuntarily, then he was under some tyrant's sway (O terrible violence!) and who was the tyrant? You will hardly say it was nature,— for nature is tolerant of chastity. If it was voluntarily, then by a few syllables your father is done away with, for you are shown to be the son of Will, and not of your father. But I pass to the relation between God and the creature, and I put your own question to your own wisdom. Did God create all things voluntarily or under compulsion? If under compulsion, here also is the tyranny, and one who played the tyrant; if voluntarily, the creatures also are deprived of their God, and you before the rest, who invent such arguments and tricks of logic. For a partition is set up between the Creator and the creatures in the shape of Will. And yet I think that the Person who wills is distinct from the Act of willing; He who begets from the Act of begetting; the Speaker from the speech, or else we are all very stupid. On the one side we have the mover, and on the other that which is, so to speak, the motion. Thus the thing willed is not the child of will, for it does not always result therefrom; nor is that which is begotten the child of generation, nor that which is heard the child of speech, but of the Person who willed, or begot, or spoke. But the things of God are beyond all this, for with Him perhaps the Will to beget is generation, and there is no intermediate action (if we may accept this altogether, and not rather consider generation superior to will).
VII. Will you then let me play a little upon this word Father, for your example encourages me to be so bold? The Father is God either willingly or unwillingly; and how will you escape from your own excessive acuteness? If willingly, when did He begin to will? It could not have been before He began to be, for there was nothing prior to Him. Or is one part of Him Will and another the object of Will? If so, He is divisible. So the question arises, as the result of your argument, whether He Himself is not the Child of Will. And if unwillingly, what compelled Him to exist, and how is He God if He was compelled— and that to nothing less than to be God? How then was He begotten, says my opponent. How was He created, if as you say, He was created? For this is a part of the same difficulty. Perhaps you would say, By Will and Word. You have not yet solved the whole difficulty; for it yet remains for you to show how Will and Word gained the power of action. For man was not created in this way.
VIII. How then was He begotten? This Generation would have been no great thing, if you could have comprehended it who have no real knowledge even of your own generation, or at least who comprehend very little of it, and of that little you are ashamed to speak; and then do you think you know the whole? You will have to undergo much labour before you discover the laws of composition, formation, manifestation, and the bond whereby soul is united to body—mind to soul, and reason to mind; and movement, increase, assimilation of food, sense, memory, recollection, and all the rest of the parts of which you are compounded; and which of them belongs to the soul and body together, and which to each independently of the other, and which is received from each other. For those parts whose maturity comes later, yet received their laws at the time of conception. Tell me what these laws are? And do not even then venture to speculate on the Generation of God; for that would be unsafe. For even if you knew all about your own, yet you do not by any means know about God's. And if you do not understand your own, how can you know about God's? For in proportion as God is harder to trace out than man, so is the heavenly Generation harder to comprehend than your own. But if you assert that because you cannot comprehend it, therefore He cannot have been begotten, it will be time for you to strike out many existing things which you cannot comprehend; and first of all God Himself. For you cannot say what He is, even if you are very reckless, and excessively proud of your intelligence. First, cast away your notions of flow and divisions and sections, and your conceptions of immaterial as if it were material birth, and then you may perhaps worthily conceive of the Divine Generation. How was He begotten?— I repeat the question in indignation. The Begetting of God must be honoured by silence. It is a great thing for you to learn that He was begotten. But the manner of His generation we will not admit that even Angels can conceive, much less you. Shall I tell you how it was? It was in a manner known to the Father Who begot, and to the Son Who was begotten. Anything more than this is hidden by a cloud, and escapes your dim sight.
IX. Well, but the Father begot a Son who either was or was not in existence. What utter nonsense! This is a question which applies to you or me, who on the one hand were in existence, as for instance Levi in the loins of Abraham; and on the other hand came into existence; and so in some sense we are partly of what existed, and partly of what was nonexistent; whereas the contrary is the case with the original matter, which was certainly created out of what was non-existent, notwithstanding that some pretend that it is unbegotten. But in this case “to be begotten,” even from the beginning, is concurrent with “to be.” On what then will you base this captious question? For what is older than that which is from the beginning, if we may place there the previous existence or non-existence of the Son? In either case we destroy its claim to be the Beginning. Or perhaps you will say, if we were to ask you whether the Father was of existent or non-existent substance, that he is twofold, partly pre-existing, partly existing; or that His case is the same with that of the Son; that is, that He was created out of non-existing matter, because of your ridiculous questions and your houses of sand, which cannot stand against the merest ripple.
Source: Orations (New Advent)