Numbers 30:8-9

King James Version

⁸ But if her husband disallowed her on the day that he heard it; then he shall make her vow which she vowed, and that which she uttered with her lips, wherewith she bound her soul, of none effect: and the Lord shall forgive her.

⁹ But every vow of a widow, and of her that is divorced, wherewith they have bound their souls, shall stand against her.