Leipzig, 1736; NBA No. 51.
The melody is not by J. S. Bach and there is very little evidence that Bach had anything at all to do with the figured bass line.
Cantata BWV 157 & Motet BWV Anh 159: Ich lasse dich nicht, are not based on this CM ?
Use of the Chorale Melody by other composers:
Johann Hermann Schein (1586-1630): Ich lasse dich nicht, motet for 5 voices & continuo (Israelis Brünlein No. 4) (1623)
Sources: NBA, vols. III/2.1 & 2.2 in particular [Bärenreiter, 1954 to present] and the BWV ("Bach Werke Verzeichnis") [Breitkopf & Härtel, 1998]
The PDF files of the Chorales were contributed by Margaret Greentree J.S. Bach Chorales Software: Capella Professional 2008, Version 6.0. Prepared by Thomas Braatz & Aryeh Oron (March 2008)