11. We have then proved that the birth of the Son was the work of the Father; now let us prove that it was the work of the Son also. Now what is the birth of the Son of the Virgin Mary? Surely it is His assumption of the form of a servant in the Virgin’s womb. Is the birth of the Son ought else, but the taking of the form of a servant in the womb of the Virgin? Now hear how that this was the work of the Son also. “Who when He was in the form of God, thought it not robbery to be equal with God, but emptied Himself, taking upon Him the form of a servant.” “When the fulness of time was come, God sent forth His Son, made of a woman,” who was “made His Son of the seed of David according to the flesh.” In this then we see that the birth of the Son was the work of the Father; but in that the Son Himself “emptied Himself, taking the form of a servant,” we see that the birth of the Son was the work also of the Son Himself. This then has been proved; so let us pass on from this point, and receive ye with attention that which comes next in order.