Numbers 5:19-20

19The priest shall have her take an oath and shall say to the woman, “If no man has lain with you and if you have not 1gone astray into uncleanness, being under the authority of your husband, be 2immune to this water of bitterness that brings a curse;

20if you, however, have 3gone astray, being under the authority of your husband, and if you have defiled yourself and a man other than your husband has had intercourse with you”