The next prelude from Kehl's "Erste Sammlung einiger variierter Choräle" is the prelude to "Liebster Jesu wir sind hier". Though a lot of Kehl's music is technically not too demanding, in this case Kehl makes the prelude a little harder to play. After a stately, almost dignified introduction, Kehl accompanies the choral melody with a lot of 32th notes. There's no obvious relation with the text of the choral, so probably Kehl wrotes those rapid notes just because he liked the effect.
Score available here: https://partitura.org/index.php/johann-balthasar-kehl-liebster-jesu-wir-sind-hier