'Oath' in the Bible

then the priest shall cause the woman to swear with the oath of cursing, and the priest shall say unto the woman, Jehovah make thee a curse and an oath among thy people, when Jehovah doth make thy thigh to fall away, and thy body to swell;

When a man voweth a vow unto Jehovah, or sweareth an oath to bind his soul with a bond, he shall not break his word; he shall do according to all that proceedeth out of his mouth.

And if she vowed in her husband's house, or bound her soul by a bond with an oath,

Every vow, and every binding oath to afflict the soul, her husband may establish it, or her husband may make it void.