The O Antiphon for the Magnificat at Vespers on December 18:

O Adonai and ruler of the house of Israel, who appeared to Moses in the burning bush and gave him the Law on Sinai: come with an outstretched arm and redeem us.

Healey Willan (1880-1968), professor at the Royal Conservatory of Music in Toronto and organist at St. Mary Magdalene Church in the same city, composed a setting of The Great O Antiphons of Advent for the Lutheran Church-Missouri Synod’s Concordia Publishing House in 1957.  Here’s Willan’s setting of “O Adonai,” as sung by the choir of Christ Church Cathedral in Vancouver, British Columbia:

O come, O come, Thou Lord of might,
Who to Thy tribes on Sinai’s height
In ancient times didst give the Law
In cloud and majesty and awe.

Rejoice! Rejoice! Emmanuel
Shall come to thee, O Israel!

-Rick Krueger

(Image: O Adonai by Linda Witte Henke, Te Deum Designs.)