1 And Moses spake unto the heads of the tribes concerning the children of Israel, saying, This is the thing which the LORD hath commanded. 2 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. 3 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; 4 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 wherewith she hath bound her soul shall stand. 5 But if her father disallow 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. 6 And if she had at all an husband, when she vowed, or uttered ought out of her lips, wherewith she bound her soul; 7 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. 8 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. 9 But every vow of a widow, and of her that is divorced, wherewith they have bound their souls, shall stand against her. 10 And if she vowed in her husband's house, or bound her soul by a bond with an oath; 11 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. 12 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. 13 Every vow, and every binding oath to afflict the soul, her husband may establish it, or her husband may make it void. 14 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. 15 But if he shall any ways make them void after that he hath heard them; then he shall bear her iniquity. 16 These are the statutes, which the LORD commanded Moses, between a man and his wife, between the father and his daughter, being yet in her youth in her father's house.
[AD 528] Procopius of Gaza on Numbers 30:2
Moreover, what is undertaken by children to the disgrace of their parents does not merit the name of vow, despite those wicked doctors and teachers who tell their parents that “whatever you would have received from me is Corban.” For God commands us to honor father and mother in all cases.
A man who infringes on the vow of his new bride, which she made without her father’s approval, [does not sin]. The same applies to a married man who does not consent to a vow his wife made. For what is vowed when the woman is subject to a greater power, if it is not carried out, does not make her guilty. But if the woman becomes a widow or is separated from her husband, her vow is binding. This ancient institution of God is confirmed because the woman was made for the sake of the man, and it is just for her to obey him. There is also that verse from Paul, that the woman should revere the man.
Scripture gives a similar explanation for matters concerning affliction of the soul, fasting and other practices, when it says, concerning the month of fasting, “In that month you will afflict your souls.”