Complex sentence: The opening chorus on a psalm verse, "" (Examine me, God, and discover my heart), is mainly in two parts (A and A'), with choral fugues on the same themes, both presenting the complete text.
Split into simpler sentences: The opening chorus expands on a psalm verse, "" (Examine me, God, and discover my heart). The movement is structure in two parts (A and A'), with choral fugues on the same themes, both presenting the complete text.