The Bible has specific rules for vows made by women which differ somewhat from the vows made by men. A woman's marital status determines whether or not a woman will be held to her vows.
In the Bible there are a few instances where the rules appear to be different from the rules for men, primarily because when God first made mankind He created man first and after seeing the man was lonely he made a woman (Eve) from a rib from Adam's side as a helper for Adam. First we see what the Bible says about men making vows and then we will be able to see the difference from what the Bible says about women making vows. Men making vows And Moses spake unto the heads of the tribes concerning the children of Israel, saying, This is the thing which the Lord hath commanded. Num. 30:1 If a man vow a vow unto the Lord, or swear an oath to bind his soul with a bond: he shall not break his word, he shall do according to all that proceedeth out of his mouth: Num. 30:2 Unmarried woman living with their father's vows allowed if her father agrees If a woman also vow a vow unto the Lord, and bind herself by a bond, being in her father's house in her youth; Num. 30:3 Unmarried woman living with their father's vows not allowed if her father disagrees And her father hear her vow, and her bond wherewith she hath bound her soul, and her father shall hold his peace at her: then all her vows shall stand, and every bond where with she hath bound her soul shall stand. Num. 30:4 Unmarried woman forgiven her vows if her father does not allow her to fulfill it But if her father disallows her in the day that he heareth; not any of her vows, or of her bonds wherewith she hath bound her soul, shall stand: and the Lord shall forgive her because her father disallowed her. Num. 30:5 A married woman's vows will stand if her husband agrees And if she had at all an husband, when she vowed, or uttered aught out of her lips wherewith she bound her soul; Num. 30:6 And her husband heard it and held his peace at her in the day that he heard it: then her vows shall stand, and her bonds wherewith she bound her soul shall stand. Num. 30:7 Married woman's vows will not stand if her husband disagrees 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. Num. 30:8 Widowed and Divorced Women's Vows But every vow of a widow and of her that is divorced wherewith they have bound their souls, shall stand against her. Num. 30:9 And if she vowed in her husband's house, or bound her soul by a bond with an oath; Num. 30:10 A woman's vows will stand if her husband agrees And her husband heard it, and held his peace at her, and disallowed her not: then all her vows shall stand, and every bond wherewith she bound her soul shall stand. Num. 30:11 But if her husband hath utterly made them void on the day he heard them; then whatsoever proceeded out of her lips concerning her vows or concerning the bond of her soul, shall not stand: her husband hath made them void; and the Lord shall forgive her. Num. 30:12 Every vow, and every binding oath to afflict the soul, her husband may establish it or her husband may make it void. Num. 30:13 But if her husband altogether hold his peace at her from day to day; then he establisheth all her vows, or all her bonds, which are upon her; he confirmeth them, because he held his peace at her in the day that he heard them. Num. 30:14