“What shall I say to you; what shall I tell you? I behold a Mother who has brought forth; I see a Child come to this light by birth. The manner of His conception I cannot comprehend. Nature here rested, while the Will of God labored. O ineffable grace! The Only Begotten, Who is before all ages, Who cannot be touched or be perceived, Who is simple, without body, has now put on my body, that is visible and liable to corruption. For what reason? That coming amongst us he may teach us, and teaching, lead us by the hand to the things that men cannot see. For since men believe that the eyes are more trustworthy than the ears, they doubt of that which they do not see, and so He has deigned to show Himself in bodily presence, that He may remove all doubt.
And he was born from a Virgin, who knew not His purpose neither had she labored with Him to bring it to pass, nor contributed to that which He had done, but was the simple instrument of His hidden Power. That alone she knew which she had learned by her question to Gabriel: how shall this be done, because I know not a man? Then said he; do you wish to hear his words? The Holy Spirit shall come upon thee, and the power of the Most High shall overshadow thee.
And in what manner was the almighty with her, Who in a little while came forth from her? He was as the craftsman, who coming on some suitable material, fashions to himself a beautiful vessel; so Christ, finding the holy body and soul of the Virgin, builds for Himself a living temple, and as He had willed, formed there a man from the Virgin; and, putting Him on, this day came forth; unashamed of the loveliness of our nature. For it was to Him no lowering to put on what he Himself had made. Let that handiwork be forever glorified, which became the cloak of its own Creator. For as in the first creation of flesh, man could not be made before the clay had come into His hand, so neither could this corruptible body be glorified, until it had first become the garment of its Maker.
What shall I say! And how shall I describe this Birth to you? For this wonder fills me with astonishment. The Ancient of days has become an infant. He Who sits upon the sublime and heavenly Throne, now lies in a manger. And He Who cannot be touched, Who is simple, without complexity, and incorporeal, now lies subject to the hands of men. He Who has broken the bonds of sinners, is now bound by an infant’s bands. But He has decreed that ignominy shall become honor, infamy be clothed with glory, and total humiliation the measure of His Goodness.
For this He assumed my body, that I may become capable of His Word; taking my flesh, He gives me His spirit; and so He bestowing and I receiving, He prepares for me the treasure of Life. He takes my flesh, to sanctify me; He gives me His Spirit that He may save me.”
(St. John Chrysostom, “Nativity Homily,” The Sunday Sermons of the Great Fathers, pp. 112-113)