Matthew 19:6-9

6So they are no longer two but one. Therefore, don’t let anyone separate what God has joined together.”

7The Pharisees asked him, “Why, then, did Moses order a man to give his wife a written notice to divorce her?”

8Jesus answered them, “Moses allowed you to divorce your wives because you’re heartless. It was never this way in the beginning.

9I can guarantee that whoever divorces his wife for any reason other than her unfaithfulness is committing adultery if he marries another woman.”