'Jealousy' in the Bible

If an attitude of jealousy overcomes him so that he becomes jealous at his wife when she is defiled, or if an attitude of jealousy overcomes him and he becomes jealous of his wife even though she isn't defiled,

then that man is to bring his wife to the priest along with an offering for her consisting of a tenth of an ephah of barley flour. He is not to pour oil or set frankincense over it, because it's to be a jealousy offering, a memorial offering that will serve as a reminder of iniquity.

The priest is to have the woman stand in the LORD's presence, uncover her head, and put the grain offering as a memorial, a reminder of jealousy, into her hands. The priest is also to have in his hand the contaminated water that carries a curse.

The priest is to take the offering of jealousy from the woman's hand, wave the offering in the LORD's presence, and have her approach the altar.

This is the law in cases of jealousy when a woman defiles herself while under her husband's authority:

When a man becomes under the control of an attitude of jealousy regarding his wife, he is to present her to the Lord, and the priest is to apply this entire statute to her.

"Eleazar's son Phinehas, grandson of Aaron the priest, has turned my wrath away from Israel. Because his zealousness reflected my own zeal for them, I didn't consume Israel in my jealousy.