Numbers 30:9-11

New Revised Standard Version, Anglicised

⁹ (But every vow of a widow or of a divorced woman, by which she has bound herself, shall be binding upon her.) ¹⁰ And if she made a vow in her husband’s house, or bound herself by a pledge with an oath, ¹¹ and her husband heard it and said nothing to her, and did not express disapproval to her, then all her vows shall stand, and any pledge by which she bound herself shall stand.