Numbers 30:6-8

New Revised Standard Version, Anglicised

⁶ If she marries, while obligated by her vows or any thoughtless utterance of her lips by which she has bound herself, ⁷ and her husband hears of it and says nothing to her at the time that he hears, then her vows shall stand, and her pledges by which she has bound herself shall stand. ⁸ But if, at the time that her husband hears of it, he expresses disapproval to her, then he shall nullify the vow by which she was obligated, or the thoughtless utterance of her lips, by which she bound herself; and the Lord will forgive her.