Does being a new person in Christ make you sinless?

Les explains that every believer suddenly has a change of appetites, lifestyle, behavior, and attitude because they are a new person, different from what they were. He clarifies this does not give a halo or make anyone sinless; rather, believers are the result of a creative work of Creator God and have a whole new concept in life. He illustrates with a young man who spent Saturday nights in a tavern and asked why Les was not in the bar; Les replied for the same reason he did not see him in church Sunday morning. Their lifestyles and appetites are totally different, as different as daylight and dark. Les questions professing Christians who see nothing wrong with doing everything the world does. There must be a change in attitude and behavior; if there is none, he doubts anything happened. If we are the work of a creative act of God, old things are passed away, old appetites, and everything becomes new and different. He looks for that change in lifestyle before saying someone has come to know the Lord or been born again.