Cheating is wrong, certainly. But a man can repent and ask for divine forgiveness. He can walk away from that slut with whom he committed adultery and live chastely in the future. (Or he can start a second marriage with a religious woman. If that adulteress embraces the faith hard enough, and repents enough, he might even marry her.) It's a disturbing corollary to those bumper stickers, "Christians aren't perfect, only forgiven."