Battle of the Mind "Finally, brethren, whatever things are true, whatever things are noble, whatever things are just, whatever things are pure, whatever things are lovely, whatever things are of good report, if there is any virtue and if there is anything praiseworthy --- meditate on these things." (Philippians 4:8)
Much of the Christian life is a battle of the mind. Satan wants to twist our minds and our flesh desires to rule our thoughts but God tells us to "be transformed by the renewing of your mind". Before we even commit a sinful act, there is first the thought and the temptation to do it in our minds. I read a blog written by a pastor the other day and he said, "when temptations come, the first 10 seconds will generally determine the outcome." There is a battle going on between the spirit and the flesh for control over our will and we must be quick to meditate on the things that will draw us closer to God so that we "make no provision for the flesh, to fulfill it's lusts (Rom 13:14).
What is true, just, pure, lovely, of good report, virtuous, praiseworthy? GOD. He is all of those things and so is His Word. There are so many good things about God to meditate on. His faithfulness, long suffering, kindness, gentleness, love, mercy, affection, etc. All of who we can know God to be is written in the pages of the Bible and we can read of them and experience them in our lives. It is easy to entertain thoughts that aren't of God and that are sinful but we can choose to meditate on Him and His Word instead.
Let's be looking for those things to meditate on that are true, just, pure, lovely, good, virtuous, and praiseworthy and cut off the opportunity for sin and impurity to rule our hearts and minds.