Now the Word of life became flesh, and was heard, and was seen, and was handled, because He was flesh who, before He came in the flesh, was the “Word in the beginning with God” the Father, and not the Father with the Word. For although the Word was God, yet was He with God, because He is God of God; and being joined to the Father, is with the Father.
Tertullian
Against Praxeas
Chapter XV