Antiphon, December 20 (O Clavis David)

O Key of David, And Sceptre of the House of Israel, Who opens and no man shuts, Who shuts and no man opens: Come, And bring forth the captive from his prison, He who sits in darkness and in the shadow of death. Amen. O Clavis David, et sceptrum domus Israel: qui aperis, et nemo claudit; claudis, et nemo aperit: veni et educ vinctum de domo carceris, sedentem in tenebris, et umbra mortis.