Romans 12:2 (NKJV)
Have you ever noticed that nothing really stays clean for very long? Where we live, the clothes we wear, our car, and even things like our teeth need continual cleaning. Most people are not too excited about the cleaning process, but most people like to have things clean. Even though cleaning something can take some time and effort, the results are worth it. If we don't clean things on a regular basis, and pay attention to what we have, then all kinds of dirt and other bad things will accumulate.
In our world today, we are bombarded with all kinds of information, images, sounds, and ideas that can fill up and clutter our mind. If we are not careful, we can easily have so much stuff in our mind that how we think and what we think about become a mess. This is why we need a continual cleaning of our thinking and of all the things that try to make their way into our thought life. We need a daily, continual process of cleaning up our mind by renewing our mind with the Word of God.
We need to guard our thoughts to make sure that what we allow ourselves to think about is in line with God's Word. We also need to make sure we have a continual process of cleaning the thoughts and ideas we have by filling our mind with the Word of God and replacing any wrong thoughts with right and godly thoughts. This continual cleaning process with God's Word will not only improve our life and make us more effective in God's plan for our life, but it will help us be a greater blessing to those around us.