Hilary of Poitiers

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(ii. de Trin. c. 15) Thou wilt say, that a word is the sound of the voice, the enunciation of a thing, the expression of a thought: this Word was in the beginning with God, because the utterance of thought is eternal, when He who thinketh is eternal. But how was that in the beginning, which exists no time either before, or after, I doubt even whether in time at all? For speech is neither in existence before one speaks, nor after; in the very act of speaking it vanishes; for by the time a speech is ended, that from which it began does not exist. But even if the first sentence, in the beginning was the Word, was through thy inattention lost upon thee, why disputest thou about the next; and the Word was with God? Didst thou hear it said, “In God,” so that thou shouldest understand this Word to be only the expression of hidden thoughts? Or did John say with by mistake, and was not aware of the distinction between being in, and being with, when he said, that what was in the beginning, was not in God, but with God? Hear then the nature and name of the Word; and the Word was God. No more then of the sound of the voice, of the expression of the thought. The Word here is a Substance, not a sound; a Nature, not an expression; God, not a nonentity.