Numbers 5:19-22
19 Then the priest shall put the woman under oath and say to her, “If no other man has slept with you and you have not gone astray and become impure while married to your husband, may this bitter water that brings a curse not harm you.
20 But if you have gone astray while married to your husband and you have defiled yourself by sleeping with a man other than your husband”—
21 here the priest is to put the woman under this curse of the oath—“may the Lord cause your people to curse and denounce you when he causes your thigh to waste away and your abdomen to swell.
22
May this water that brings a curse enter your body so that your abdomen swells and your thigh wastes away.”
“‘Then the woman is to say, “Amen. So be it.”