Faith alone is the foundational answer to the question, "What must I do to be saved?" The doctrine of justification by faith alone is at the center of Reformation theology, and remains critical for all believers today. This doctrine is continually under assault, yet without it, there is no gospel. In this lecture series, Dr. R.C. Sproul explores the doctrine of justification historically and theologically. He carefully defines each term in the phrase "justification by faith alone" while pointing to the imputation of a perfect righteousness found only in Jesus Christ.