Numbers 5:20-22

Amplified Bible

²⁰ but if you have gone astray [while married] and you have defiled yourself and a man other than your husband has been intimate with you” ²¹ (then the priest shall have the woman swear the oath of the curse, and say to the woman), “The Lord make you a curse and an oath among your people when the Lord makes your thigh ^[a]waste away and your abdomen swell; ²² and this water that brings a curse shall go into your stomach, and make your abdomen swell and your thigh waste away.” And the woman shall say, “Amen. Amen (so let it be).”