Numbers 5:18-20

18Then the priest must bring the woman in front of the Lord. The priest must make the woman's hair free. He must put into her hands the grain offering. That is the offering because the man does not trust his wife. The priest must hold the bowl that contains the bitter water. The bitter water brings a curse.

19Then the woman must agree to the strong promise that the priest tells her to say. The priest must say to her, “This water brings a curse. If no other man has had sex with you, it will not hurt you.

20But if another man has had sex with you,