Ambrose of Milan

Let not the venom of Apollinaris flatter itself because it is written, "And in appearance he was found as a man," for the manhood of Jesus is not thereby denied but confirmed, since elsewhere Paul himself speaks of him as "Mediator of God and men, himself man, Christ Jesus." It is the customary manner of Scripture so to express itself as we also read in the Gospel, "And we saw his glory—glory as of the only-begotten of the Father." As he is there called only-begotten Son of God, so he is said to be man, and the fullness of humanity that was in him is not denied.