As concertmaster, he assumed the principal responsibility for composing new works, specifically cantatas for the Schlosskirche (palace church), on a monthly schedule.
Bach wrote five movements, a chorus and four arias, and concluded with the fifth verse of the chorale "Meinen Jesum laß ich nicht" by Christian Keymann.
An unknown poet kept the existing movements and added recitatives and a chorale to end part 1 of the new cantata, the final verse of "Freu dich sehr, o meine Seele" by Christoph Demantius.
The cantata in two parts of 7 and 4 movements was scored in Leipzig for soprano, alto, tenor, and bass soloists, a four-part choir, trumpet, oboe, bassoon, two violins, viola, and basso continuo.
[5] All instruments accompany the recitative, illustrating the fright of the sinners, the calmness of the chosen ones, the destruction of the world, and the fear of the ones called to be judged.
[7] The recitative in movement 9 opens with a Furioso depicting the "unerhörten letzten Schlag" (the unheard-of last stroke),[1] while the trumpet quotes the hymn "Es ist gewisslich an der Zeit" (Indeed, the time is here).
After this intimate reflection of the thought "Jesus führet mich zur Stille, an den Ort, da Lust die Fülle."