Numbers 5:22, 27

Now may this water that brings the curse enter your body and cause your abdomen to swell and your womb to shrivel.’ And the woman will be required to say, ‘Yes, let it be so.’

If she has defiled herself by being unfaithful to her husband, the water that brings on the curse will cause bitter suffering. Her abdomen will swell and her womb will shrink, and her name will become a curse among her people.