For though we live in the world, we do not wage war as the world does. On the contrary, they have divine power to demolish strongholds. We demolish arguments and every pretension that sets itself up against the knowledge of God, and we take every thought captive to make it obedient to Christ. And we will be ready to punish every act of disobedience, once your obedience is complete.
2 Corinthians 10:3-6
What goes on inside your mind and thoughts can be very different then what you show on the outside. Inside you may harbor dark thoughts, wandering thoughts, and straying thoughts. You may do what is right on the outside, but on the inside your thoughts are waging war. God doesn’t want your thoughts to take you captive. He wants you to bind the Word to your mind. What that means is taking scripture and mediating on it to the point where no evil thought can penetrate. Let His Word lead your thoughts and emotions. If your mind is dwelling and continually mediating on the Word then your thoughts will eventually become one with God’s. That’s what He wants for you; to have a mind of Christ. Your head is what rules your life and out of the heart comes your true intentions. If you let God change your thoughts, He can change your life!