O clauis david & septrum domus Israel, qui aperis & nemo claudit, claudis & nemo aperit, veni & educ uinctum de domo carceris sedentem in tenebris et in umbra mortis.
O Clavis David, of whom Isaiah told,
Called sceptre and key, to every lock well fit
Of Israel – I mean of Jacob’s household –
Thou openest locks which no creature can shut,
And closest again what cannot be unshut;
Loose us, thy prisoners, bound in wretchedness
Of sin, shadowed with mortal darkness.
