The final Mass of Christmas Day focuses on the eternal birth of the Son from the Father. As such, the Gospel of Mass is John 1 and there is no Last Gospel in the Rite of St. Gregory. This Mass is a commemoration of the two central mysteries of the Christian faith: the Trinity and the Incarnation, and the propers are rich in the contemplation of these mysteries.
Ant. A Child is born to us, and a Son is given to us Whose government is upon His shoulder; and His name shall be called the Angel of great counsel.
V. Sing ye to the Lord a new song; because He hath done marvelous things.
V. Glory be…
Ant. Thine are the heavens, and Thine is the earth, the world and the fullness thereof Thou hast founded; justice and judgement are the preparation of Thy throne.
Ant. All the ends of the earth have seen the salvation of our God.