The principal subject matter of Trinity I is the moral worth of riches. The gospel is the parable of the rich man and Lazarus (Luke 16:19-31). One of the several questions set, and explored by Bach, is ‘what is the social purpose of riches?’
Die Elenden sollen essen, daß sie satt werden, und die nach dem Herrn fragen, werden ihn preisen. Euer Herz soll ewiglich leben.
The wretched shall eat until they are satisfied, and those who ask after the Lord, shall praise Him. Your hearts shall live forever.