Kantate, BWV 35 "Geist und Seele wird verwirret"

Geist und Seele wird verwirret (Spirit and soul become confused), BWV 35, is a church cantata by Johann Sebastian Bach. He composed the solo cantata for alto voice in Leipzig for the twelfth Sunday after Trinity and first performed it on 8 September 1726.

Bach composed the cantata in his fourth year as Thomaskantor (director of church music) 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. 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.