★ Synaxis of the Most Holy Theotokos
On the day after the Nativity of Christ the Orthodox Church gathers in solemn assembly to glorify the Mother of God, through whom the salvation of the world was made possible. This commemoration, known as a Synaxis, is one of the oldest such gatherings in the Christian tradition. From the fourth century onwards Saint Epiphanius of Cyprus and other Fathers attest to the keeping of this feast on the day immediately following the Nativity.
Combining the hymns of the feast of the Incarnation with those that praise the Theotokos, the Church confesses that the Virgin Mary is the one through whom the Son of God came to dwell among men. She is "the unwedded Mother", "the Bride unbridegroomed", and the living temple of the Most High. To her the Magi offered their gifts, the shepherds came in haste, and through her the angel announced the joy of the Saviour's birth. The hymns of the day proclaim, "What shall we offer Thee, O Christ? Each of Thy creatures bringeth Thee a gift; but we offer Thee a Virgin Mother."
The day is also the second of the three Christmas days that form the Winter Pascha, and stands as a great festal commemoration of the Theotokos in the cycle of feasts.