Answer to Eunomius' Second Book
And if any one would distinguish such notions by words, he would find it absolutely necessary to call that which admits of no changing to the worse unchanging and invariable, and to call the First Cause of all ungenerate, and that which admits not of corruption incorruptible; and that which ceases at no limit immortal and never failing; and that which presides over all Almighty. And so, framing names for all other Divine attributes in accordance with reverent conceptions of Him, we designate them now by one name, now by another, according to our varying lines of thought, as power, or strength, or goodness, or ungeneracy, or perpetuity.
I say, then, that men have a right to such word-building, adapting their appellations to their subject, each man according to his judgment; and that there is no absurdity in this, such as our controversialist makes a pretence of, shuddering at it as at some gruesome hobgoblin, and that we are fully justified in allowing the use of such fresh applications of words in respect to all things that can be named, and to God Himself.
For God is not an expression, neither has He His essence in voice or utterance. But God is of Himself what also He is believed to be, but He is named, by those who call upon Him, not what He is essentially (for the nature of Him Who alone is is unspeakable), but He receives His appellations from what are believed to be His operations in regard to our life. To take an instance ready to our hand; when we speak of Him as God, we so call Him from regarding Him as overlooking and surveying all things, and seeing through the things that are hidden. But if His essence is prior to His works, and we understand His works by our senses, and express them in words as we are best able, why should we be afraid of calling things by words of later origin than themselves? For if we stay to interpret any of the attributes of God till we understand them, and we understand them only by what His works teach us, and if His power precedes its exercise, and depends on the will of God, while His will resides in the spontaneity of the Divine nature, are we not clearly taught that the words which represent things are of later origin than the things themselves, and that the words which are framed to express the operations of things are reflections of the things themselves? And that this is so, we are clearly taught by Holy Scripture, by the mouth of great David, when, as by certain peculiar and appropriate names, derived from his contemplation of the works of God, he thus speaks of the Divine nature: “The Lord is full of compassion and mercy, long-suffering, and of great goodness.” Now what do these words tell us? Do they indicate His operations, or His nature? No one will say that they indicate anything but His operations. At what time, then, after showing mercy and pity, did God acquire His name from their display? Was it before man's life began? But who was there to be the object of pity? Was it, then, after sin entered into the world? But sin entered after man. The exercise, therefore, of pity, and the name itself, came after man. What then? will our adversary, wise as he is above the Prophets, convict David of error in applying names to God derived from his opportunities of knowing Him? Or, in contending with him, will he use against him the pretence in his stately passage as out of a tragedy, saying that “he glories in the most blessed life of God with names drawn from human imagination, whereas it gloried in itself alone, long before men were born to imagine them”? The Psalmist's advocate will readily admit that the Divine nature gloried in itself alone even before the existence of human imagination, but will contend that the human mind can speak only so much in respect of God as its capacity, instructed by His works, will allow. “For,” as says the Wisdom of Solomon, “by the greatness and beauty of the creatures proportionably the Maker of them is seen.”
But in applying such appellations to the Divine essence, “which passes all understanding,” we do not seek to glory in it by the names we employ, but to guide our own selves by the aid of such terms towards the comprehension of the things which are hidden. “I said unto the Lord,” says the Prophet, “You are my God, my goods are nothing unto You.” How then are we glorifying the most blessed life of God, as this man affirms, when (as says the Prophet) “our goods are nothing unto Him”? Is it that he takes “call” to mean “glory in”? Yet those who employ the latter word rightly, and who have been trained to use words with propriety, tell us that the word “glory in” is never used of mere indication, but that that idea is expressed by such words as “to make known,” “to show,” “to indicate,” or some other of the kind, whereas the word for “glory in” means to be proud of, or delight in a thing, and the like. But he affirms that by employing names drawn from human imagination we “glory in” the blessed life. We hold, however, that to add any honour to the Divine nature, which is above all honour, is more than human infirmity can do. At the same time we do not deny that we endeavour, by words and names devised with due reverence, to give some notion of its attributes. And so, following studiously in the path of due reverence, we apprehend that the first cause is that which has its subsistence not from any cause superior to itself. Which view, if so be one accepts it as true, is praiseworthy for its truth alone. But if one should judge it to be superior to other aspects of the Divine nature, and so should say that God, exulting and rejoicing in this alone, glories in it, as of paramount excellence, one would find support only from the Muse by whom Eunomius is inspired, when he says, that “ungeneracy” glories in itself, that which, mark you, he calls God's essence, and styles the blessed and Divine life.
Source: Answer to Eunomius' Second Book (New Advent)