Synaxis of the Holy Theotokos
WHEN THE Lord Jesus was born of the holy Virgin, all the world was enlightened. The shepherds watched in the fields, the Magi adored and the angels praised in song; but Herod was troubled: for God has appeared in the flesh, the Savior of our souls.
Thy Kingdom, O Christ our God, is a Kingdom of all the ages, and Thy rule is from generation to generation. Made flesh of the Holy Spirit and made man of the ever-Virgin Mary, Thou hast enlightened us by Thy coming. Light of Light, Brightness of the Father, Thou hast made the whole creation shine with joy. All that hath breath praises Thee, the Image of the glory of the Father. O God who art, and who hast ever been, who hast shone forth from a Virgin, have mercy upon us.
What shall we offer thee, O Christ, who for our sakes hast appeared on earth as man? Every creature made by Thee offers Thee thanks. The angels offer Thee a hymn; the heavens a star; the Magi, gifts; the shepherds, their wonder; the earth, its cave; the wilderness, the manger; and we offer Thee a Virgin Mother. O pre-eternal God, have mercy upon us.
—Feast of the Nativity of Christ, Vespers