Matthew 19:3-9

ISV^{(i) 3} Some Pharisees came to him in order to test him. They asked, “Is it lawful for a man to divorce his wife for any reason?”
⁴ He answered them, “Haven’t you read that the one who made them at the beginning ‘made them male and female’ ⁵ and said, ‘That is why a man will leave his father and mother and be united with his wife, and the two will become one flesh’? ⁶ So they are no longer two, but one flesh. Therefore, what God has joined together, man must never separate.”
⁷ They asked him, “Why, then, did Moses order us ‘to give a certificate of divorce and divorce her’?”
⁸ He told them, “It was because of your hardness of heart that Moses allowed you to divorce your wives. But from the beginning it was not this way. ⁹ I tell you that whoever divorces his wife, except for sexual immorality, and marries another woman commits adultery.”