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Concerning Divorce
3Some Pharisees came to Jesus, testing Him and asking, “Is it lawful for a man to divorce his wife for any reason at all?” 4And He answered and said, “Have you not read that He who created them from the beginning made them male and female, 5and said, ‘For this reason a man shall leave his father and his mother and be joined to his wife, and the two shall become one flesh’? 6So they are no longer two, but one flesh. Therefore, what God has joined together, no person is to separate.” 7They *said to Him, “Why, then, did Moses command to give her a certificate of divorce and send her away?” 8He *said to them, “Because of your hardness of heart Moses permitted you to divorce your wives; but from the beginning it has not been this way. 9And I say to you, whoever divorces his wife, except for sexual immorality, and marries another woman commits adultery.”
Matthew 19:3-9 (NASB)