O Key of David

Dec. 19, Vespers:

O Clavis David, et sceptrum domus Israel, qui aperis
et nemo claudit, claudis et nemo aperuit: veni et educ
vinctum de domo carceris sedentem in tenebris, et umbra mortis.

O Key of David, Scepter of the House of Israel, who opens and
no one shuts, who shuts and no one opens: Come and lead the
captive from prison, the one seated in darkenss and the shadow
of death!