 Many opening movements are based on quotations from the Bible, such as , from .Ideally, a cantata text started with an Old Testament quotation related to the readings, and reflected both the Epistle and the Gospel, as in the exemplary .Most of the solo movements are based on poetry of contemporary writers, such as court poet Salomon Franck in Weimar or Georg Christian Lehms or Picander in Leipzig, with whom Bach collaborated.