Geist und Seele wird verwirret, BWV 35 ""Spirit and soul become confused""

Bach composed the cantata in his fourth year as Thomaskantor (musical director) in Leipzig. The text is based on the day's prescribed reading from the Gospel of Mark, the healing of a deaf mute man. The librettist is Georg Christian Lehms, whose poetry Bach had used already in Weimar as the basis for solo cantatas. The text quotes ideas from the gospel and derives from these the analogy that as the tongue of the deaf mute man was opened, the believer should be open to admire God's miraculous deeds. The cantatas for this Sunday have a positive character, which Bach stressed in earlier works for the occasion by including trumpets in the score. In this work, he uses instead an obbligato solo organ in several movements.