O Lamm Gottes, unschuldig (without BWV number)

Whose song is O Lamm Gottes, unschuldig (without BWV number)?

Artist Album
Johann Sebastian Bach
J.S. Bach Complete Works for Organ (feat. Marie-Claire Alain)
Marie-Claire Alain
J.S. Bach - Complete Works for Organ - CD15
Johann Sebastian Bach - Complete Works for Organ - Disc 15