Both Protestants and Roman Catholics affirm that faith in Jesus Christ is a necessary condition for justification. Where we disagree is whether sinners are justified before God by faith alone. What does Scripture say? In this message, R.C. Sproul explains the doctrine of justification by faith alone, a biblical teaching so near the heart of the gospel that Martin Luther called it the article upon which the church stands or falls. This message is from Dr. Sproul’s 10-part teaching series Luther and the Reformation. Learn more: https://www.ligonier.org/learn/series/luther-and-the-reformation