Mark 10:1-8

Then Jesus left the region and went into the district of Judea, across from the Jordan River, and again, massive crowds flocked to him, and Jesus, as was his custom, began to teach the people. At one point, some of the Pharisees came, seeking to entrap him with a question. “Tell us,” they asked, “is it lawful for a man to divorce his wife?” He answered them, “What did Moses command you?” They replied, “Moses permitted us to write a certificate of separation that would be valid to complete a divorce.” Jesus said, “Yes, Moses wrote this exception for you because you are hardhearted. But from the beginning God created male and female. For this reason a man will leave his parents and be wedded to his wife. And the husband and wife will be joined as one flesh, and after that they no longer exist as two, but one flesh.