Nine months before Christmas, March 25 is observed as the Annunciation of Our Lord.
O Christ,
Word of God Most High,
you were made flesh
that you might dwell among us.
Pour your grace
into our hearts and minds
that we who have been redeemed
by the Mystery of your Incarnation
may forever dwell with you;
through your mercy,
O Christ our God,
with the Father and the Holy Spirit,
you live and reign,
one God, now and forever.
Amen.
Source: Freely modified from Mozarabic Collects, ed. Rev. Chas. R. Hale, New York, 1881.