Your greatest enemy, in all probability, is within.  It’s the nagging doubt, the belief that you just don’t have what it takes to live the Christian life.  Most of the time, we can keep the voices quiet but, especially when we are tired or discouraged or afraid, they invade our minds.  Writer and speaker Elisabeth Elliott used to say, “Our enemy delights in disquieting us.  Our Savior, our Helper, delights in quieting us.”  The Bible says that our enemy “...the devil prowls around like a roaring lion looking for someone to devour” (1 Peter 5:8).  Maybe you don’t have to be convinced that He is the enemy of your soul, yet quite often we don’t fully understand how he often defeats us by influencing our thinking.