Book excerpt: Christians often struggle to understand the role of God's law in their lives. They may distort the law, turning it into a checklist to try to earn God's favor, or they may live as though the law doesn't apply to them. In this booklet, Dr. R.C. Sproul explains the purpose of the moral law and how it applies to Christians today. As he walks through each of the Ten Commandments, we see that the law doesn't merely expose our sin; it also reveals the character of a holy and gracious God and shows us how to live lives that are pleasing to Him. The Crucial Questions booklet series by Dr. R.C. Sproul offers succinct answers to important questions often asked by Christians and thoughtful inquirers.