The O Antiphon for the Magnificat at Vespers on December 19:

O Root of Jesse, standing as an ensign before the peoples, before whom all kings are mute, to whom the nations will do homage: come quickly to deliver 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 Root of Jesse,” as sung by the choir of Christ Church Cathedral in Vancouver, British Columbia:

O come, Thou Branch of Jesse’s tree,
Free them from Satan’s tyranny
That trust Thy mighty pow’r to save,
And give them vict’ry o’er the grave.

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

— Rick Krueger

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