Catena Aurea on John 1:14: Hilary of Poitiers

Some, however, who think God the Only-Begotten, God the Word, Who was in the beginning with God, not to be God substantially, but a Word sent forth, the Son being to God the Father, what a word is to one who utters it, these men, in order to disprove that the Word, being substantially God, and abiding in the form of God, was born the Man Christ, argue subtilly, that, whereas that Man (they say) derived His life rather from human origin than from the mystery of a spiritual conception, God the Word did not make Himself Man of the womb of the Virgin; but that the Word of God was in Jesus, as the spirit of prophecy in the Prophets. And they are accustomed to charge us with holding, that Christ was born a Man, notr of our body and soul; whereas we preach the Word made flesh, and after our likeness born Man, so that He Who is truly Son of God, was truly born Son of man; and that, as by His own act He took upon Him a body of the Virgin, so of Himself He took a soul also, which in no case is derived from man by mere parental origin. And seeing He, The Self-same, is the Son of man, how absurd were it, besides the Son of God, Who is the Word, to make Him another person besides, a sort of prophet, inspired by the Word of God; whereas our Lord Jesus Christ is both the Son of God, and the Son of man.