Numbers 30:2-4

World English Bible

² When a man vows a vow to Yahweh, or swears an oath to bind his soul with a bond, he shall not break his word. He shall do according to all that proceeds out of his mouth.

³ “Also, when a woman vows a vow to Yahweh and binds herself by a pledge, being in her father’s house, in her youth, ⁴ and her father hears her vow and her pledge with which she has bound her soul, and her father says nothing to her, then all her vows shall stand, and every pledge with which she has bound her soul shall stand.