Mark 10:4

And they said. Moses suffered to write a bill of divorcement, and to put her away.

The duplicity and deceit of the Pharisees appear in this answer which quoted Moses inaccurately and without regard to the circumstance under which in some cases, he permitted divorce. The Mosaic regulation regarding divorce (Deuteronomy 24:1) was definitely not a blanket permission of divorce for any cause, but only in cases where the husband had found something "unseemly" in his wife. To be sure, the Pharisees, following the most liberal interpretation, allowed "divorce for the most trivial of reasons."[5] The great Jewish authorities held divergent views:

Shammai was extremely strict, allowing divorce only for unchastity; but Hillel allowed it for many trivial reasons, including even the burning of bread in preparation of a meal.[6]

[5] William Barclay, op. cit., p. 24.

[6] Henry E. Turlington, Broadman Bible Commentary (Nashville: Broadman Press, 1946), p. 346.