(13) Every vow, and every binding oath to afflict the soul.--Reference is again made to the two kinds of vows which are treated of in this chapter--viz., a vow to do anything, and a vow to abstain from anything.

Verse 13. - Oath to afflict the soul. No doubt by fasting or by other kinds of abstinence. The expression is especially used in connection with the rigorous fast of the day of atonement (Leviticus 16:29; Numbers 29:7; and cf. Isaiah 58:5; 1 Corinthians 7:5).

30:3-16 Two cases of vows are determined. The case of a daughter in her father's house. When her vow comes to his knowledge, it is in his power either to confirm it or do it away. The law is plain in the case of a wife. If her husband allows her vow, though only by silence, it stands. If he disallows it, her obligation to her husband takes place of it; for to him she ought to be in subjection, as unto the Lord. The Divine law consults the good order of families. It is fit that every man should bear rule in his own house, and have his wife and children in subjection; rather than that this great rule should be broken, or any encouragement be given to inferior relations to break those bonds asunder, God releases the obligation even of a solemn vow. So much does religion secure the welfare of all societies; and in it the families of the earth have a blessing.Every vow, and every binding oath to afflict the soul,.... By fasting, as Aben Ezra observes; as when a vow was made, or a person bound herself by an oath to abstain from such and such food, or to fast on such a day; to keep a fast which was not appointed, to set apart a day for fasting, besides the grand and general fast on the day of atonement: Jarchi from hence gathers, that a man only makes vows of afflicting the soul, or vows of fasting; but this is not said by way of limitation and restriction, but by way of amplification and illustration, giving a particular instance, by which others may be judged of:

her husband may establish it, or her husband may make it void, just as he pleased; and this power an husband had, to prevent confusion in the family, and trouble in the affairs of it, by vowing abstinence from such and such food, or from such and such liquor, and the like; and to prevent running into expenses he was not able to answer, by vowing and dedicating, this and the other to holy uses, for sacrifices, and repairs of the temple, and the like.