"Ach Gott, wie manches Herzeleid" (Oh God, how much heartache) is a hymn in German in 18 stanzas attributed to Martin Moller (1587).

[1] It is often catalogued as a paraphrase of the Latin "Jesu dulcis memoria", a medieval hymn attributed to Bernard of Clairvaux,[2] but only a few lines refer directly to this song.

[3]: 150  The anonymous hymn tune of "Herr Jesu Christ, meins Lebens Licht" first appeared in Wolflein Lochamer's Lochamer-Liederbuch, printed in Nürnberg around 1455.

[7][8] Johann Sebastian Bach used the final three stanzas of Ach Gott, wie manches Herzeleid to conclude Schau, lieber Gott, wie meine Feind, BWV 153, a church cantata composed for the Sunday after New Year's Day, 2 January 1724,[9] and the first stanza of the hymn as movement 4 of Sie werden euch in den Bann tun, BWV 44, for Exaudi, the Sunday after Ascension, 21 May 1724.

[1][10] The entire hymn is also the base for Bach's Ach Gott, wie manches Herzeleid, BWV 3, a chorale cantata composed in Leipzig for the second Sunday after Epiphany, 14 January 1725.