Numbers 30:2-4

Revised Standard Version

² When a man vows a vow to the Lord, or swears an oath to bind himself by a pledge, he shall not break his word; he shall do according to all that proceeds out of his mouth. ³ Or when a woman vows a vow to the Lord, and binds herself by a pledge, while within her father’s house, in her youth, ⁴ and her father hears of her vow and of her pledge by which she has bound herself, and says nothing to her; then all her vows shall stand, and every pledge by which she has bound herself shall stand.