Behold, a virgin shall be with child, and shall bring forth a son, and they shall call his name Emmanuel
"Make ready, O Bethlehem, Eden hath been opened unto all. Prepare, O Ephratha, for the Tree of life hath blossomed in the cave from the Virgin. For her womb proved to be a spiritual paradise wherefrom there came the Divine Plant, whereof eating we shall live and not die like Adam. Christ is born to raise the image that fell of old."
-Troparion of the Forefeast of the Nativity
"The never-setting Sun doth come to shine forth from the Virgin's womb and to enlighten all the world. Let us make haste to meet Him with pure eyes and deeds; and let us now make ready in spirit to receive Him that cometh into His own through a strange birth, as He hath been well pleased to do, that, as He is compassionate, He might lead us up that have estranged ourselves from the life of Eden, and might be born in Bethlehem."
"Daniel, the man of divine desires, seeing Thee, the Stone uncut by human hands, O Lord, prophetically called Thee a babe born without seed, the Word incarnate of the Virgin, the immaculate God, the Savior of our souls."
-From Vespers of the Sunday of the Holy Fathers