Numbers 5:23-28

“Then the priest shall write these curses in a book and wash them off into the water of bitterness. And he shall make the woman drink the water of bitterness that brings the curse, and the water that brings the curse shall enter into her and cause bitter pain. And the priest shall take the grain offering of jealousy out of the woman’s hand and shall wave the grain offering before the LORD and bring it to the altar. And the priest shall take a handful of the grain offering, as its memorial portion, and burn it on the altar, and afterward shall make the woman drink the water. And when he has made her drink the water, then, if she has defiled herself and has broken faith with her husband, the water that brings the curse shall enter into her and cause bitter pain, and her womb shall swell, and her thigh shall fall away, and the woman shall become a curse among her people. But if the woman has not defiled herself and is clean, then she shall be free and shall conceive children.