Proverbs 6:29-33

So it is with the man who sleeps with another man’s wife. He who embraces her will not go unpunished. Excuses might be found for a thief who steals because he is starving. But if he is caught, he must pay back seven times what he stole, even if he has to sell everything in his house. But the man who commits adultery is an utter fool, for he destroys himself. He will be wounded and disgraced. His shame will never be erased.