Numbers 5:24; Numbers 5:26; Numbers 5:27; Numbers 20:8

24 'Then he shall make the woman drink the water of bitterness that brings a curse, so that the water which brings a curse will go into her and cause bitterness.

26 and the priest shall take a handful of the grain offering as its memorial offering and offer it up in smoke on the altar, and afterward he shall make the woman drink the water.

27 'When he has made her drink the water, then it shall come about, if she has defiled herself and has been unfaithful to her husband, that the water which brings a curse will go into her and cause bitterness, and her abdomen will swell and her thigh will waste away, and the woman will become a curse among her people.

8 "Take the rod; and you and your brother Aaron assemble the congregation and speak to the rock before their eyes, that it may yield its water. You shall thus bring forth water for them out of the rock and let the congregation and their beasts drink."