In The Plan of Salvation, Warfield presents varied perspectives on salvation, based on Calvinism. Using pertinent illustrations he helps us understand the various denominational distinctive views on salvation. While he identifies the crucial questions associated with God’s salvation plan he also offers a crushing critique to the most dangerous answers that have been raised to answer them!
Warfield, in The Princeton Theological Review, v.xiii, 1915, deals with the reason Christ was sent into the world! Both books are indispensable for personal study on salvation and a great guide to teach others.