6. By way of illustration, John Newton saw the enormity of his sin as a slave-trader. It was horrible--human trafficking at its worst. He had committed some of the most heinous crimes and he knew it. When confronted with the Gospel, and convicted of his sin he found Christ. He was the one who wrote Amazing Grace.
Maybe you should try to get a hold of Newton tell him he does not even have to stop human trafficking and other heinous crimes. Maybe you should tell him of your good news. Tell him he is still an evil sinner and can continue to sin and still be right with God. That is what you preach.