Kantate, BWV 17 "Wer Dank opfert, der preiset mich"

Johann Sebastian Bach composed the church cantata Wer Dank opfert, der preiset mich (He who offers thanks praises Me), BWV 17 in Leipzig for the fourteenth Sunday after Trinity and first performed it on 22 September 1726.

In his fourth year as Thomaskantor in Leipzig, Bach performed 18 cantatas composed by his relative Johann Ludwig Bach, a court musician in Meiningen. He then set some of the texts himself, including this cantata, written probably by Ernst Ludwig, Duke of Saxe-Meiningen. They follow a pattern: seven movements are divided in two parts, both beginning with biblical quotations, Part I from the Old Testament, Part II from the New Testament.

The text is based on the prescribed gospel reading telling of Jesus cleansing ten lepers. It is opened by a verse from Psalm 50, quotes a key sentence from the gospel and is closed by a stanza from Johann Gramann's hymn "Nun lob, mein Seel, den Herren". The cantata, structured in two parts to be performed before and after the sermon, is modestly scored for four vocal soloists and choir (SATB), and a Baroque orchestra of two oboes, strings and continuo.