Numbers 5:13-15

New Revised Standard Version Catholic Edition

¹³ if a man has had intercourse with her but it is hidden from her husband, so that she is undetected though she has defiled herself, and there is no witness against her since she was not caught in the act; ¹⁴ if a spirit of jealousy comes on him, and he is jealous of his wife who has defiled herself; or if a spirit of jealousy comes on him, and he is jealous of his wife, though she has not defiled herself; ¹⁵ then the man shall bring his wife to the priest. And he shall bring the offering required for her, one-tenth of an ephah of barley flour. He shall pour no oil on it and put no frankincense on it, for it is a grain offering of jealousy, a grain offering of remembrance, bringing iniquity to remembrance.