Ach Gott, wie manches Herzeleid. Martin Moller? [Cross and Consolation.] First appeared in the 2nd ed., Gorlitz, 1587, of Moller's Meditationes Sanctorum Patrum, entitled "A consoling prayer wherewith a troubled soul, amid all the crosses and tribulations of these last troublous times, can sweetly comfort itself and longingly delight itself in the Sweet Name of Jesus Christ. From the Ancient hymn 'Jesu dulcis memoria.'" It is a very free paraphrase of the Rhythm in 12 stanzas of 6 lines. Lauxmann, in Koch, viii. 466-468, says stanzas i., iv., v., x. have been special favourites in Germany, and inclines to ascribe the hymn to Moller.
Ah God, my days are dark indeed, a very good translation, omitting stanzas iii., v., in the 2nd Ser. 1858, of Miss Winkworth’s Lyra Germanica p. 185, and repeated, as No. 136, in her Chorale Book for England , 1863. In the Ohio Lutheran Hymnal, 1880, stanzas i., ii., iv., vii., ix., xii., are given as No. 416. Her translation of stanzas iv., vi., vii., ix.-xi., beginning, "Jesus, my only God and Lord," were included as No. 215, in the Methodist New Congregational Hymn Book, 1863, and the same, omitting stanza vi., as No. 300 in Holy Song, 1869. Her translations of stanzas vii., viii., xi., xii., slightly altered and beginning "Jesu, my boast, my light, my joy," were given as No. 507, in Kennedy, 1863.
-- Excerpts from John Julian, Dictionary of Hymnology (1907)