Matthew 19:7-9

The Pharisees said to Him, “Why then did Moses command us to GIVE HER A CERTIFICATE OF DIVORCE AND SEND HER AWAY?” [Deut 24:1-4] He said to them, “Because your hearts were hard and stubborn Moses permitted you to divorce your wives; but from the beginning it has not been this way. I say to you, whoever divorces his wife, except for sexual immorality, and marries another woman commits adultery.”