What new concept do believers have in life?

Les explains that every believer suddenly experiences a change of appetites, a change of lifestyle, a change in behavior, and a change in attitude because they are a new person, different from what they were. This does not give them a halo or make them sinless, but they are now the result of a creative work of a Creator God, and they have a whole new concept in life. Les illustrates this with a young man his same age who spent every Saturday night in the tavern and the bar. The man asked why he never saw Les in the bar on Saturday night, and Les replied, for the same reason he did not see the man in church on 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, insisting there must be a change in attitude and behavior. If there is no change, he doubts anything has happened, because if we are the work of a creative act of God, old things—old appetites—pass away and everything becomes new and different. Les says he looks for that change in lifestyle before saying someone has come to know the Lord or been born again.