Numbers 5:11-15

11Then the Lord spoke to Moses, saying,

12“Speak to the Israelites and say to them, ‘If any man’s wife goes astray (deviates) and is unfaithful to him,

13and a man is intimate with her, and it is hidden from the eyes of her husband and it is kept secret, although she has defiled herself, and there is no witness against her and she has not been caught in the act,

14and if a spirit (sense, attitude) of jealousy comes over him and he is jealous and angry at his wife who has defiled herself—or if a spirit of jealousy comes over him and he is jealous of his wife when she has not defiled herself—

15then the man shall bring his wife to the priest, and he shall bring as an offering for her, a tenth of an ephah of barley meal; he shall not pour oil on it nor put frankincense on it [the symbols of favor and joy], because it is a grain offering of jealousy, a memorial grain offering, a reminder of [the consequences of] wickedness.