Merciful God, who sent your messengers the
prophets to preach repentance and prepare the way for our salvation:
Give us grace to heed their warnings and forsake our sins, that we may
greet with joy the coming of Jesus Christ our Redeemer; who lives and
reigns with you and the Holy Spirit, one God, now and for ever. Amen.

From the Book of Common Prayer:

Almighty
God, give us the grace to cast away the works of darkness, and put on
the armor of light, now in the time of this mortal life in which your
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
living and the dead, we may rise to life immortal; through him who
lives and reigns with you and the Holy Spirit, one God, now and for
ever.

Amen.