Mark 10:3
What did Moses command you? he replied — Jesus' counter-question returns the inquiry to the questioners' own authority. The Mosaic command (Deuteronomy 24:1–4) is the foundation of the Pharisaic divorce debate between the schools of Shammai (divorce only for sexual immorality) and Hillel (divorce for any reason). By asking what Moses commanded, Jesus forces the Pharisees to identify their own starting point before he challenges it.