Francis Roberts (1609-1675), was a Presbyterian and Reformed Puritan, widely known for his theological works. From McMahon's introduction: "Most Evangelicals today believe that salvation is by an outward show of moral character. This kind of religion is specially designed by the devil for the natural man. Roberts’ work on directing sinners from being captive to their natural tendencies to Christ is not simply a work that shakes the sinner’s intellectual mechanisms to understand the basics of the Gospel of Jesus Christ concerning sin and salvation, but this work is one of the most violent theological earthquakes of Gospel exhortation ever penned by any pastor or theologian in the history of the Christian church. Roberts’ main objective is to get sinners not only interested in Christ, but pointed in the direction of the only means by which men must be saved." This is not a scan or facsimile, has been updated in modern English for easy reading and has an active table of contents for electronic versions.