All sin carries a price tag. Its consequences may range from minor to major, but the bill always comes due.
Somebody always pays.
There's a story about a boy whose father pounded a nail in the barn door every time the boy did something wrong. Soon there were many nails. Then one day the boy accepted Christ as Savior and began living for Him. To impress upon his son the wonder of being forgiven, the father took him to the barn and pulled out every nail from the door. They are gone forever.