Complex sentence: Written for the twenty-first Sunday after Trinity, it was part of his second annual cycle of cantatas which was planned as a cycle of chorale cantatas, based on prominent Lutheran hymns, for all occasions of the liturgical year.
Split into simpler sentences: Written for the twenty-first Sunday after Trinity, it was part of his second annual cycle of cantatas. It was planned as a cycle of chorale cantatas, based on prominent Lutheran hymns, for all occasions of the liturgical year.