All of us need to ask ourselves, ‘Are the changes I am making to become a Christian only skin-deep, or am I truly becoming a Christian deep within?’ The difference is important. In his words recorded at Matthew 12:43-45, Jesus indicated what needs to be done. The idea behind those words highlights this important truth: It is not enough to get rid of wrong thoughts; we need to fill the void with godly thinking. Is it possible to change our basic inclinations or who we really are inside? God’s Word answers: “Put on the new personality that was created according to God’s will in true righteousness and loyalty.” (Eph. 4:24) Yes, it is possible to change what we are inside, but it is not easy to do. We need to do more than just suppress wrong desires and actions. We need to change our “dominant mental attitude.” That involves changing our desires, our tendencies, and our motivations. This requires continuous action. w19.06 9-10 ¶6-7