Bunyan - Cowper - Brainerd John Bunyan suffered long-term imprisonment, even when a simple promise to cease preaching would have freed him, and he was moved to rely on God even more... Despite month after month of debilitating depression, William Cowper's poetry reflected the sustaining character of God and led him to worship more deeply... David Brainerd so desired to honor God that through the loneliness of wilderness ministry and the...