', is a cantata by Johann Sebastian Bach. He composed the church cantata in Leipzig for the second Sunday after Trinity within the liturgical year and first performed it on 6 June 1723.
Bach composed the cantata at a decisive turning point in his career. Moving from posts in the service of churches and courts to the town of Leipzig on the first Sunday after Trinity, 30 May 1723, he began the project of composing a new cantata for every occasion of the liturgical year. He began his first annual cycle of cantatas ambitiously with , in an unusual layout of 14 movements in two symmetrical parts, to be performed before and after the sermon. '' has the same structure.
The unknown poet begins his text with a quotation from Psalm 19 and refers to both prescribed readings from the New Testament, the parable of the great banquet as the Gospel, and the First Epistle of John. Bach scored Part I with a trumpet as a symbol of God's Glory. In Part II, performed after the sermon and during communion, he wrote chamber music with oboe d'amore and viola da gamba, dealing with "brotherly devotion". Both parts are closed with a stanza of Martin Luther's hymn (1524).