The Work of Jesus Christ as an Advocate, Clearly Explained and Largely Improved for the Benefit of All Believers (1689)

According to Wikipedia: "John Bunyan (28 November 1628 - 31 August 1688) was an English Christian writer and preacher, famous for writing The Pilgrim's Progress. Though he was a Reformed Baptist, in the Church of England, he is remembered with a Lesser Festival on 30 August."