Bach Cantata ''Herz und Mund und Tat und Leben'', BWV 147

Herz und Mund und Tat und Leben (Heart and mouth and deed and life), BWV. 147, is a cantata by J.S. Bach, written originally in Weimar in 1716 (as BWV 147a) for Advent and expanded in 1723 for the feast of the Visitation in Leipzig, where it was first performed on 2 July 1723.