Numbers 30:2-4

2If a man vow a vow to Jehovah, or swear an oath to bind his soul with a bond, he shall not break his word; according to all that hath gone out of his mouth shall he do.

3If a woman also vow a vow to Jehovah, and bind herself by a bond, in her father's house in her youth,

4and her father hear her vow, and her bond wherewith she hath bound her soul, and her father shall be silent at her, then all her vows shall stand, and every bond wherewith she hath bound her soul shall stand.