 Bach structured the cantata in five movements, three choral movements interspersed by an arioso and an aria.In both solo movements, a chorale stanza sung simultaneously by the soprano intensifies the Psalm text.He scored it for two soloist (tenor and bass), a four-part choir, and a small Baroque instrumental ensemble of oboe (Ob), bassoon (Fg), violin (Vl), two violas (Va), and basso continuo.