"Let the whole world marvel:
such a birth befits God.
Not by a man's seed
but by a mystical inbreathing
did the Word of God become flesh
and the fruit of the womb flourish.
The Virgin's womb swells
but the door of chastity remains shut
The banners of virtue are radiant:
God dwells in his temple.
Let him come out of from his bridal chamber,
the royal hall of chastity,
a giant of twofold nature,
eager to run his course
His going out is from the Father,
his coming back is to the Father,
his journey is as far as hell,
his return is to the throne of God."

-St Ambrose