Complex sentence: The cantata is based on Johann Heermann's chorale in seven stanzas "Was willst du dich betrüben" (1630), focused on trust in God even when facing adversaries, connected to the trust in God as a theme of the Gospel.
Split into simpler sentences: The cantata is based on Johann Heermann's chorale in seven stanzas "Was willst du dich betrüben" (1630). The chorale stresses trust in God even when facing adversaries, trust in God is also a theme of the Gospel.