Matthew Chapter 19, Verse 7
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7: λεγουσιν αυτω τι ουν μωσης ενετειλατο δουναι βιβλιον αποστασιου και απολυσαι αυτην
7: They say unto him, Why did Moses then command to give a
writing of divorcement, and to put her away?
7: They say to him: Why then did Moses command to give a bill of
divorce, and to put away?
Why did Moses, etc. To this they objected that Moses had allowed such divorces, Deut 24:1 and if he had allowed them, they inferred that they could not be unlawful. See Barnes "Mt 5:31".

