Numbers 5:23-28

“The priest is to write these curses on a scroll and then wash the words off into the bitter water. He then is to give the woman the bitter water that delivers a curse. This water will enter her body and cause acute pain. The priest then is to take from her hands a handful of the Grain-Offering for jealousy, wave it before GOD, and bring it to the Altar. The priest then is to take a handful of the Grain-Offering, using it as an exposure-offering, and burn it on the Altar; after this he is to make her drink the water. If she has defiled herself in being unfaithful to her husband, when she drinks the water that delivers a curse, it will enter her body and cause acute pain; her belly will swell and her womb shrivel. She will be cursed among her people. But if she has not defiled herself and is innocent of impurity, her name will be cleared and she will be able to have children.