Matthew 19:3-9

3 Some P'rushim came and tried to trap him by asking, "Is it permitted for a man to divorce his wife on any ground whatever?"

4 He replied, "Haven't you read that at the beginning the Creator made them male and female,

5 and that he said, `For this reason a man should leave his father and mother and be united with his wife, and the two are to become one flesh'?

6 Thus they are no longer two, but one. So then, no one should split apart what God has joined together."

7 They said to him, "Then why did Moshe give the commandment that a man should hand his wife a get and divorce her?"

8 He answered, "Moshe allowed you to divorce your wives because your hearts are so hardened. But this is not how it was at the beginning.

9 Now what I say to you is that whoever divorces his wife, except on the ground of sexual immorality, and marries another woman commits adultery!"