On the Incarnation, Book 6
Scripture Says Christ Existed Before the Ages
And yet, to return to what we said before, even though all these things are as we have stated, how is it that we read that Jesus Christ, whom you assert to be a mere man, always existed, even before his birth of a virgin? And how is he proclaimed by prophets and apostles as God even before the ages? As Paul says: “One Lord Jesus, through whom are all things.” And elsewhere he says: “For in Christ all things were created in heaven and on earth, visible and invisible.”
The creed too, which was framed by both human and divine authority, says: “I believe in God the Father, and in the Lord Jesus Christ, his Son.” And after other clauses: “True God from true God; by whom the ages were framed and all things were made.” And further: “Who for us came and was born of the Virgin Mary, and was crucified, and was buried.”