Christ “put off” His body on the cross, in which God “put off” spiritual rulers and in which Christians have “put off” the old unregenerate self and its sinful deeds.
The continuing obligation of the Ten Commandments—including the Fourth Commandment—is the expectation of the Bible and the majority position of the Reformed churches.
Jesus’ central point thus was that to divorce your spouse so as to free yourself up to potentially marry another is not sufficient grounds for divorce.