The opening movement, "Du wahrer Gott und Davids Sohn" (You true God and Son of David), is "a sinewy and somewhat enigmatic quintet" for soprano and alto voices (assuming the role of the blind man addressing Jesus) with low active oboes and continuo. The movement is in adapted ternary form with an opening and closing "Italianate" ritornello. The soprano line includes a "drooping" motive, hinting at later harmonic and emotional development. There is a "thorny, even awkward juxtaposition of triple and duple meters" throughout the duet.