Mark 10:1-4

Jesus then left that place and went into the region of Judea and across the Jordan. Again crowds of people came to him, and as was his custom, he taught them. Some Pharisees came and tested him by asking, “Is it lawful for a man to divorce his wife?” “What did Moses command you?” he replied. They said, “Moses permitted a man to write a certificate of divorce and send her away.”