'Oath' in the Bible
The 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 gone astray into uncleanness, being under the authority of your husband, be immune to this water of bitterness that brings a curse;
(then the priest shall have the woman swear with the oath of the curse, and the priest shall say to the woman), “the Lord make you a curse and an oath among your people by the Lord’s making your thigh waste away and your abdomen swell;
‘Because the Lord could not bring this people into the land which He promised them by oath, therefore He slaughtered them in the wilderness.’
If a man makes a vow to the Lord, or takes an oath to bind himself with a binding obligation, he shall not violate his word; he shall do according to all that proceeds out of his mouth.
However, if she vowed in her husband’s house, or bound herself by an obligation with an oath,
“Every vow and every binding oath to humble herself, her husband may confirm it or her husband may annul it.