'Bitterness' in the Bible

And the priest will present the woman {before} Yahweh, and he will uncover the head of the woman; he will then put in her hands the grain offering of the remembering--[which is] the grain offering of jealousy--and in the hand of the priest will be the waters of bitterness that brings a curse.

Then the priest will make her swear an oath, and he will say to the woman, "If a man has not slept with you, and if you have not had an impurity affair under your husband, go unpunished from the waters of bitterness that brings this curse.

" 'And the priests will write these curses on the scroll, and he will wipe [them] off into the waters of the bitterness.

He will make the woman drink the waters of the bitterness that brings a curse, and the waters of bitterness that bring a curse will go into her.

When he has made her drink the waters, it will come about, if she has defiled herself and acted unfaithfully to her husband and the waters of bitterness that bring a curse go into her and her stomach swells and her hip falls away, the woman will be as a curse in the midst of her people.