Matthew 19:3-9

Pharisees came to him, testing him and saying, “Is it lawful for a man to divorce his wife for any reason?” He answered, “Haven’t you read that he who made them from the beginning made them male and female, and said, ‘For this cause a man shall leave his father and mother, and shall be joined to his wife; and the two shall become one flesh’? So that they are no more two, but one flesh. What therefore God has joined together, don’t let man tear apart.” They asked him, “Why then did Moses command us to give her a certificate of divorce and divorce her?” He said to them, “Moses, because of the hardness of your hearts, allowed you to divorce your wives, but from the beginning it has not been so. I tell you that whoever divorces his wife, except for sexual immorality, and marries another, commits adultery; and he who marries her when she is divorced commits adultery.”