Mark 10:5

Mark 10:5. For your hardness of heart. Their general sinfulness, with special reference to harshness toward their wives, which this regulation was designed to counteract. It was not to encourage divorce.

He wrote. This implies that some of the precepts of the Mosaic law were of temporary validity, designed only to educate the chosen people. The law of Paradise is, in one sense, more permanent, just as Paul exalts the Abrahamic covenant above the law (Galatians 3).