Ich hatte viel Bekümmernis (I had much grief), BWV 21, is a church cantata by Johann Sebastian Bach. He composed it in Weimar, possibly in 1713, partly even earlier, and used it in 1714 and later for the third Sunday after Trinity. The work marks a transition between motet style on biblical and hymn text to operatic recitatives and arias on contemporary poetry. He catalogued the work as e per ogni tempo (and for all times), indicating that due to its general theme the cantata is suited for any occasion.