Numbers 5:24; Numbers 5:26-27; Numbers 20:8
And he shall cause the woman to drink the bitter water that causeth the curse : and the water that causeth the curse shall enter into her, and become bitter.
And the priest shall take an handful of the offering, even the memorial thereof, and burn it upon the altar, and afterward shall cause the woman to drink the water.
And when he hath made her to drink the water, then it shall come to pass, that, if she be defiled , and have done trespass against her husband, that the water that causeth the curse shall enter into her, and become bitter, and her belly shall swell , and her thigh shall rot : and the woman shall be a curse among her people.
Take the rod, and gather thou the assembly together, thou, and Aaron thy brother, and speak ye unto the rock before their eyes; and it shall give forth his water, and thou shalt bring forth to them water out of the rock: so thou shalt give the congregation and their beasts drink .