Francis Turretin (16231687) was a Swiss-Italian Protestant theologian, and an avid defender of the Reformed Gospel of Jesus Christ. Why did Jesus Christ die on the cross? The right answer to this question is critical to salvation and entering into a right relationship with Jesus Christ. This current volume is a masterful biblical survey and polemic that illuminates the Bible's doctrine of Christ's atonement. It is doubted whether any other work of the same compass presents so clearly and forcibly the truth of God as to the Nature, Truth, Perfection, Matter, and Extent of the Satisfaction made by the our Savior. Turretin's lucid arrangement of topics, compact argumentation, fairness of statement, and constant appeal to the law and the testimony, leave the careful reader little to desire. This second edition is not a scan or facsimile, has been updated for easy reading and has an active table of contents for electronic versions. It also includes a work by McMahon on Turretin's covenant concepts.