Deuteronomy 24:4 - Clarke's commentary and critical notes on the Bible

Her former husband, which sent her away, may not take her again to be his wife, after that she is defiled; for that is abomination before the LORD: and thou shalt not cause the land to sin, which the LORD thy God giveth thee for an inheritance. She is defiled - Does not this refer to her having been divorced, and married in consequence to another? Though God, for the hardness of their hearts, suffered them to put away their wives, yet he considered all after-marriages in that case to be pollution and defilement; and it is on this ground that our Lord argues in the places referred to above, that whoever marries the woman that is put away is an adulterer: now this could not have been the case if God had allowed the divorce to be a legal and proper separation of the man from his wife; but in the sight of God nothing can be a legal cause of separation but adultery on either side. In such a case, according to the law of God, a man may put away his wife, and a wife may put away her husband; (see Matthew 19:9); for it appears that the wife had as much right to put away her husband as the husband had to put away his wife, see Mark 10:12.