This is the Festival of the virgin birth!
[...] Today I see equality of honour between heaven and earth, and a way up for all those below to things above, matching the condescension of those on high.
However great the heaven of heavens may be, or the upper waters which form a roof over the celestial regions, or any heavenly place, state or order, they are no more marvellous or honourable than the cave, the manger, the water sprinkled on the infant and His swaddling clothes.
For nothing done by God from the beginning of time was more beneficial to all or more divine than Christ’s nativity, which we celebrate today.
The pre-eternal and uncircumscribed and almighty Word is now born according to the flesh, without home, without shelter, without dwelling, and placed as a babe in the manger, seen by men’s eyes, touched by their hands, and wrapped in layers of swaddling bands.
He is not a spiritual creature coming into being after previously not existing; nor flesh which is brought to birth but will soon perish; nor flesh and mind united to form a rational creature, but God and flesh mingled unconfusedly by the divine Mind to form the existence of one theandric hypostasis, who entered the Virgin’s womb for a time.
By the good pleasure of the Father and the co-operation of the Spirit, the Word who transcends being came into being in this womb and by means of it, and now He is delivered from it and born as an infant, not loosing but preserving the signs of virginity.
He is born without suffering, as He was conceived without passion, for as His mother was shown to be above the pleasure of passion when she conceived, so she is above grievous pains when she gives birth.
“Before the pain of travail came upon her, she escaped it” as Isaiah says (Isaiah 66.7 LXX), and she brought forth in the flesh the pre-eternal Word.
Not only is His divinity inscrutable, but the manner in which He was united with the flesh is past understanding, His condescension unsurpassable, and the human nature He assumed divinely, ineffably sublime, and so far above all thought and speech, that it does not admit of any comparison with creation.
Even though you see in the flesh the child born to the Maid who knew no husband, He is still beyond compare. It says, “He is fair in beauty beside the sons of men” (Psalm 45.2 LXX). It does not say “fairer” but simply “fair”, so as not to compare incomparable things: the nature of God Himself to that of mere men.
Gregory Palamas (1296-1359): Homily 58, on the Holy Nativity of the Lord. From Saint Gregory Palamas: The Homilies (Mount Thabor Publishing, 2009) @ Greek Orthodox Cathedral of the Ascension, Oakland, California.