Luther said that the doctrine of justification by faith alone is "the article upon which the church stands or falls." R. C. Sproul follows Luther's lead in his concise and compelling work, now repackaged and republished. Justified by Faith Alone surveys the main tenets of the doctrine of justification in Roman Catholicism and evangelicalism. Sproul is careful to accurately represent Catholic beliefs and observes that while both traditions agree that faith is necessary for justification, the difference lies in whether faith alone is sufficient. He explores problems with the...