Matthew 19:5-8

Thomson(i) 5 Moreover he said, "For this cause a man is to leave his father and his mother, and cleave to his wife, and they two shall be one flesh; 6 so that they are no longer two but one flesh." Therefore what God hath conjoined, let not man separate. 7 They say to him, Why then did Moses command to give a bill of divorce and dismiss her? 8 He saith to them, Because of your intractable disposition Moses permitted you to put away your wives; but it was not so from the beginning.