John Bunyan confessed himself to have been one of the worst sinners to have ever walked God's earth. After his conversion to Jesus Christ, he was constantly amazed by the fact that the God of infinite grace should have saved him from his sin. As a minister of the gospel, he loved to proclaim the grace of God to sinners and earnestly persuaded his hearers to embrace by faith the Lord Jesus Christ in whom is found the free pardon of all our sins.