Matthew 5:31

Verses 31,32. It hath been said, etc. That is, by Moses, De 24:1,2. The husband was directed, if he put his wife away, to give her a bill of divorce, that is, a certificate of the fact that she had been his wife, and that he had dissolved the marriage. There was considerable difference of opinion among the Jews for what causes the husband was permitted to do this. One of their famous schools maintained that it might be done for any cause, however trivial. The other, that adultery only could justify it. The truth was, however, that the husband exercised this right at pleasure; that he was judge in the case, and dismissed his wife when, and for what cause, he chose.