“O Key of David, Come” (Isaiah 22:20-25; Revelation 1:12-13, 17-18; 3:7-13; Luke 1:26-33)O Wisdom, O Adonai, O Root of Jesse. And now today, O Key of David, the fourth of the seven great O Antiphons. You see it there opposite Hymn 357, and it’s also in your bulletin. So let’s begin by praying together the Key of David antiphon: “O Key of David and scepter of the house of Israel, You open and no one can close, You close and no one can open: Come and rescue the prisoners who are in darkness and in the shadow of death.” What...