though they do so unintentionally. But if Jesus is the central authority for Christian ethics, including our interpretation of Scripture for ethics, we are not free to move in this direction. Just as he read the Old Testament, and just as he employed it as providing substantive content for his ethics, we must do the same. Here Luther’s fellow Reformer Calvin did better, as he acknowledged the so-called third use of the law as a source of authority for the content of the Christian moral life. But