ORIGINAL SIN: The Doctrine of Imputation, Vital to the Christian Faith The author writes to show how much of theology in America departed from the Christian faith following the time of Jonathan Edwards. The book is an in-depth study that systematically and biblically examines the historical teachings of New England Theology on the doctrine of original sin. He addresses the heart issue which is "How can the guilt of Adam's first sin be made the sin of all mankind?" The answer is found in the contextual exegesis of Romans 5:12-19. Objectors to the imputation of Adam's first sin to all humanity say that this is impossible. Indeed it is with man, but not with God With God the doctrine of the imputation of sin and imputation of Christ's righteousness is based upon the same principle-the same principle found in the unique union that the first Adam has with all of fallen mankind and in the unique union the last Adam, Christ, has with all of redeemed mankind. Without this unique union, there could be no just imputation, no substitutionary atonement, indeed no salvation That is why the biblical doctrine of original sin is vital to the Christian faith and necessary for accurately proclaiming the Gospel of Christ.