The Nativity of our Lord God and Saviour Jesus Christ (Gregorian calendar)
Commemorated on December 25
The Nativity
Troparion — Tone 4
Your Nativity, O Christ our God, / Has shone to the world the Light of wisdom! / For by it, those who worshipped the stars, / Were taught by a Star to adore You, / The Sun of Righteousness, / And to know You, the Orient from on High. / O Lord, glory to You!
Kontakion — Tone 3
Today the Virgin gives birth to the Transcendent One, / And the earth offers a cave to the Unapproachable One! / Angels with shepherds glorify Him! / The wise men journey with a star! / Since for our sake the Eternal God was born as a Little Child!
The Nativity
Our Lord Jesus Christ, the Saviour of the world, was born of the Most Holy Virgin Mary in the city of Bethlehem during the reign of the emperor Augustus (Octavian). Caesar Augustus decreed that a universal census be made throughout his Empire, which then also included 
Palestinian Israel. The Jews were accustomed to be counted in the city from where their family came. The Most Holy Virgin and the Righteous Joseph, since they were descended from the house and lineage of King David, had to go to Bethlehem to be counted and taxed.
In Bethlehem they found no room at any of the city’s inns. Thus, the God-Man, the Saviour of the world, was born in a cave that was used as a stable.
“I behold a strange and most glorious mystery,” the Church sings with awe, “Heaven, a Cave; the Virgin the Throne of the Cherubim; the Manger a room, in which Christ, the God Whom nothing can contain is laid.” (Irmos of the 9th Ode of the Nativity Canon).
Having given birth to the divine Infant without travail, the Most Holy Virgin “wrapped Him in swaddling clothes, and laid Him in a manger” (Luke 2:7). In the stillness of midnight (Wisdom of Solomon 18:14-15), the proclamation of the birth of the Saviour of the world was heard by three shepherds watching their flocks by night.
An angel of the Lord (St Cyprian says this was Gabriel) came before them and said: “Fear not: for behold, I bring you good tidings of great joy, which shall be to all people. For unto you is born this day in the city of David a Savior, Who is Christ the Lord” (Luke 2:10-11). The humble shepherds were the first to offer worship to Him Who condescended to assume the form of a humble servant for the salvation of mankind. Besides the glad tidings to the Bethlehem shepherds, the Nativity of Christ was revealed to the Magi by a wondrous star. St John Chrysostom and St Theophylactus, commenting on St Matthew’s Gospel, say that this was no ordinary star. Rather, it was “a divine and angelic power that appeared in the form of a star.” St Demetrius of Rostov says it was a “manifestation of divine energy” (Narrative of the Adoration of the Magi). Entering the house where the Infant lay, the Magi “fell down, and worshipped Him: and when they had opened their treasures, they presented Him gifts: gold, and frankincense, and myrrh” (Mt. 2:11).