He set out from there and went into the district of Judea (and) across the Jordan. Again crowds gathered around him and, as was his custom, he again taught them. The Pharisees approached and asked, "Is it lawful for a husband to divorce his wife?" They were testing him. He said to them in reply, "What did Moses command you?" They replied, "Moses permitted him to write a bill of divorce and dismiss her." But Jesus told them, "Because of the hardness of your hearts he wrote you this commandment. But from the beginning of creation, 'God made them male and female. For this reason a man shall leave his father and mother (and be joined to his wife), and the two shall become one flesh.' So they are no longer two but one flesh. Therefore what God has joined together, no human being must separate." In the house the disciples again questioned him about this. He said to them, "Whoever divorces his wife and marries another commits adultery against her; and if she divorces her husband and marries another, she commits adultery." (Mk 10:1-12)
The Pharisees approached Jesus and questioned him to test him. Do they want to put him in prison as they did with John the Baptist? It could be so. For John the Baptist questioned Herod for marrying his brother’s wife. (Herodias probably divorced her husband Philip to marry Herod). The Pharisees want to put Jesus also against Jesus and thus put him in prison or get rid of him.
Jesus realizes that there is a trap. The Pharisees quote Moses regarding divorce. Moses does not command or encourage divorce but permits it. In his argument Jesus goes back to the time of creation. It is here that the will of God is revealed. Creation story is found in the book of creation and both Jesus and the Pharisees believed that Moses wrote the book of Genesis. In this the bond that exists between husband and wife is not one of partnership or a working relationship but it is a new entity.
The problem is not with the ideal (as God wanted it) or with the law but with the people. The people are hardhearted. Jesus gives only one remedy for this hardheartedness. The remedy is only in returning to the original intention of the Creator God. It is to return to the original plan of God. Jesus has come to re-establish the original plan of God in his proposal “the kingdom of God”.