John Bunyan confessed to have been one of the worst sinners to have walked the earth. After his conversion he was constantly amazed by the fact that God's grace saved him. As a minister he loved to proclaim the grace of God and persuaded his hearers to embrace by faith the Lord Jesus. The Jerusalem Sinner Saved brings together his thinking on the grace of forgiveness. John Bunyan was an Christian writer, preacher and. Reformed Baptist.