         Sentence 1; What did Luther. use :the: hymn to  encourage colleagues todo? mo    Sentencé . 2: Because it". expressed “essential  Reformation doctrine; this expanded. version, of  "gus; tiefer, Not!" was. designated: as ‘a régular:  ‘component of several regional Luthetan liturgies  and. was’ widely ‘used at” funerals, " including  ‘Luther's own: a ae    