the text was traditionally sung during Sunday afternoon Vespers. An earlier recorder version was performed around Christmas 1723, when Bach had just arrived in Leipzig
the famous version in D major dates from when Bach was cantor of Leipzig’s Thomaskirche
for full orchestra, including flutes, oboes, bassoons, trumpets and timpani, a five-voice vocal ensemble and soloists
compact arias, rapid alternations and surprising effects are reminiscent of Bach's early cantatas