1st Sunday of Advent

Almighty God, give us grace that we may cast away the works of darkness, and put upon us the armour of light, now in the time of this mortal life, in which thy Son Jesus Christ came to visit us in great humility; that in the last day, when he shall come again in his glorious majesty, to judge both the quick and the dead; we may rise to the life immortal; through the same Jesus Christ thy Son our Lord, who liveth and reigneth with thee, in the unity of the Holy Ghost, ever one God, world without end. Amen.

 Thus a collect for the 1st Sunday of Advent.  In the Ordinariate it's also the feast of St Edmund Campion who was martyred on this first day of December in 1581.  He doesn't get a look-in this year  since in falls on an Advent Sunday.   You can read more about him here.