wir haben euch zur Ruh gebracht
ihr schlaft nun eine lange Nacht
kein Ruf zu wecken euch vermag
...als die Posaun am jüngsten Tag
Unfortunately I can't decipher the rest.
In English it is something along the lines
we have brought you to rest
you will now sleep a long night
no call can awaken you
...except for the trombone on Judgment Day