If we worry a bit more about reforming our wits as we do about reforming our behaviors, we’d be much better off, I believe. God asks us to change our minds; that is literally to allow Him to change the patterns of our thinking. He asks us to allow Him to perform this exacting task through His own Word; but also through the indwelling of His own Holy Spirit, the third Person of the blessed Trinity.
“And do not ye be conformed to this world, but be ye reformed in newness of your wit, that ye prove which is the will of God, good, and well pleasing, and perfect.”
As we allow God to work in us through His Word and His Spirit, we inevitably find our thought patterns change. As our thoughts are changed, so our behaviors follow.
Attempting to achieve change in behavior prior to change in thought is pointless in God’s eyes.
Read the Word. As you read the Word, allow the Word to transform your mind. The rest will follow.