God told Joshua, “This Book of the Law shall not depart from your mouth, but you shall meditate in it day and night, that you may observe to do according to all that is written in it. For then you will make your way prosperous, and…have good success” (v. 8 NKJV). God views success as simple to achieve and equally simple for Him to measure. If we are going to succeed in things that really matter, we must follow the instructions for life found in Scripture. So here are three biblical rules for success: (1) Look it up. “This Book of the Law shall not depart from your mouth.” Or as the American Express credit card company likes to say, “Don’t leave home without it!” Success entails making the study of God’s Word a constant part of your life. This may mean a radical change for you. Ninety percent of Americans own a Bible. Fifty percent never read it, including twenty-three percent of all followers of Christ. And only eighteen percent of those read it every day. Imagine going to a doctor when you’re sick and getting a prescription that can make you well. But you only take it once a week or when you feel like it or never at all. Would you blame the doctor for not getting well? Some of us do that with God: “Lord, why has this happened to me? I don’t understand it.” Would you say the medicine doesn’t work? Not if you don’t take it. “My people are destroyed for lack of knowledge” (Hosea 4:6). So the word for you today is—get into God’s Word and get it into you!