"Suppose one of you has 100 sheep, but he loses one of them. Then he will leave the other 99 sheep alone and go out and look for the lost sheep. The man will continue to search for the lost sheep until he finds it.
In the same way, I tell you, heaven is a happy place when one sinner changes his heart. There is more joy for that one sinner than there is for 99 good people that don't need to change their hearts.