Sorge's prelude to "Jesus, meine Zuversicht" is another fine example of Sorge's fine way of using a trio like texture to create a chorale prelude. The introduction is written for two voices and pedal. When the chorale melody enters the accompaniment is reduced to one voice and pedals. Sorge writes a brilliant, fast moving accompaniment for the chorale melody.
Score available here: http://partitura.org/index.php/georg-andreas-sorge-jesus-meine-zuversicht