Proverbs 6:32

Whoever commits adultery with a woman lacks understanding; He who does so destroys his own soul.

Surrounding context

6:31 Yet when he is found, he must restore sevenfold; He may have to give up all the substance of his house.

6:32 Whoever commits adultery with a woman lacks understanding; He who does so destroys his own soul.

6:33 Wounds and dishonor he will get, And his reproach will not be wiped away.