O Clavis David, et sceptrum domus Irael; qui aperis, et nemo claudit; claudis, et nemo aperit: veni, et educ vinctum de domo carceris, sedentum in tenebris, et umbra mortis.
O Key of David, and sceptre of the house of Israel; that openest and no man shutteth; and shuttest and no man openeth: Come, and bring the prisoner out of the prison house, and him that sittest in darkness and the shadow of death.
20 December
