The truth is: you were thinking, it was just wrong thinking.
The Apostle Paul writes this:
Clothe yourselves with the Lord Jesus Christ, and do not think about how to gratify the desires of the sinful nature. (Romans 13:14)
The King James Version, instead of do not think, says, “make no provision for the flesh.” In other words, the idea here is forethought.
We have a filter at the base of our brains called the reticular activating system (or R.A.S.). This is what lets in the important things, and keeps out the unimportant things. But here is the vital issue—
YOU CAN PROGRAM YOUR R.A.S.!
You tell your RAS what’s important and what’s unimportant. Paul says that if we use our forethought to consciously decide to clothe ourselves with Christ, we are programming our RAS to spot the things that glorify Him and ignore the things that gratify our fleshly desires.
A phrase that I use often (hat tip to Dr. Richard Dobbins) is: I need to think about what I’m thinking about.
By doing this, I’m able to see how I’ve programmed my RAS. It’s either programmed to look for God-honoring things or flesh-gratifying things.
Try it for yourself. Make the conscious decision to read the Bible every day. Then in your prayer time, ask the Holy Spirit to help you think about God-honoring things. If you will do this, you will notice that you are noticing more things that please God, and that you are ignoring more things that please your sinful nature.