St. Paul's will observe the Feast of the Annunciation of our Lord tomorrow (Wednesday) morning with the Divine Service at 7 a.m. From tomorrow's Writing in the Treasury (p. 1286, 1287):
Only to Mary the pure virgin did the archangel Gabriel manifest himself in brilliant light, bringing her the glad address, "Hail, you who are highly favored!" And thus she received the Word, and soon, in time, through the body's natural process, she gave birth to the dear Pearl. Come, then, you, too, dearly beloved, and let us chant the melody that has been taught us by the inspired harp of David, and say, "Arise, O Lord, into Your rest, You, and the ark of Your sanctuary." For the holy Virgin is truly an ark, made with gold both within and without, who has received the whole treasury of the Holy of Holies. "Arise, O Lord, into Your rest." Arise, O Lord, out of the bosom of the Father, in order that You may raise up the fallen race of the first man. (St. Gregory Thaumaturgus)
Then gentle Mary meekly bowed her head;
"To me be as it pleaseth God," she said.
"My soul shall laud and magnify His holy name!"
Most highly favored Lady, Gloria! (LSB 356:3)
...as we have known the incarnation of Your Son, Jesus Christ, by the message of the angel to the virgin Mary, so by the message of His cross and passion bring us to the glory of His resurrection! (from the Collect)