And do not be conformed to this world, but be transformed by the renewing of your mind, that you may prove what is that good and acceptable and perfect will of God. Romans 12:2
The world sees very little difference between the person who calls himself a Christian and themselves, when the Christian tries to imitate them by not completely telling the truth, or doing things that are wrong.
What is the problem? This type of person is applying an action, e.g., “I’ll try it,” but God prescribes it as a lifestyle. The secret to having a changed lifestyle, is to have your mind renewed. The Lord is the One who has to do this, as seen in Psalm 23:3.
He will cause the renewal to take place in direct proportion to how much time you spend in the Word, and in prayer. Your mind will not stay renewed any more than your hair will stay combed, you must keep in step with the Holy Spirit.
This new lifestyle becomes a reflection of Him, because it’s demonstrating the fruits of the Spirit.