[5] The hymn suites the Gospel, stressing the Passion as well as the request of the blind man in the final line of the first stanza: "Du wollst mir Sünder gnädig sein" (Be merciful to me, a sinner).

[2] It is the second to last chorale cantata of his second annual cycle, the only later one being Wie schön leuchtet der Morgenstern, BWV 1, for the feast of Annunciation which was celebrated even if it fell in the time of Lent.

[6] The cantata in five movements is richly scored for three vocal soloists (soprano, tenor and bass), a four-part choir, trumpet, two recorders, two oboes, two violins, viola and basso continuo.

[3] Bach chose a rare instrumentation for the first aria, the oboe plays a melody, supported by short chords in the recorders, in the middle section Sterbeglocken (funeral bells) are depicted by pizzicato string sounds.

The unusual movement combines an accompagnato recitative with an aria, contrasting the destruction of heaven and earth with the security of the believers, the latter given in text and tune from the chorale.

John Eliot Gardiner describes it as a "grand, tableau-like evocation of the Last Judgement, replete with triple occurrences of a wild 6/8 section when all hell is let loose in true Monteverdian concitato ("excited") manner".

[9] The closing chorale is a four-part setting with attention to details of the text, such as movement in the lower voices on "auch unser Glaub stets wacker sei" (also may our faith be always brave)[1] and colourful harmonies on the final line "bis wir einschlafen seliglich" (until we fall asleep contentedly).