Matthew 19:7-9

WNT(i) 7 "Why then," said they, "did Moses command the husband to give her 'a written notice of divorce,' and so put her away?" 8 "Moses," He replied, "in consideration of the hardness of your nature permitted you to put away your wives, but it has not been so from the beginning. 9 And I tell you that whoever divorces his wife for any reason except her unfaithfulness, and marries another woman, commits adultery."