Numbers 5:11-15

And the LORD spake unto Moses, saying, Speak unto the children of Israel, and say unto them, If any man's wife go aside, and commit a trespass against him, And a man lie with her carnally, and it be hid from the eyes of her husband, and be kept close, and she be defiled, and {there be} no witness against her, neither she be taken {with the manner}; And the spirit of jealousy come upon him, and he be jealous of his wife, and she be defiled: or if the spirit of jealousy come upon him, and he be jealous of his wife, and she be not defiled: Then shall the man bring his wife unto the priest, and he shall bring her offering for her, the tenth {part} of an ephah of barley meal; he shall pour no oil upon it, nor put frankincense thereon; for it {is} an offering of jealousy, an offering of memorial, bringing iniquity to remembrance.