Luther detested the idea that God has established a law between Himself and His world, between Him and the finite actions and things and decisions. He wanted everything as non-rational, non-legal, as possible, not only in the process of salvation but also in the interpretation of history and nature; while Zwingli and Calvin accepted nature in terms of law. When therefore Immanuel Kant defined nature as a realm in which physical law is valid, this was much more Calvinistic or Zwinglian; in any case, it was not Lutheran. For Luther nature is the mask of God through which..He in an irrational. way very similar to the Book of Job acts when He acts with mankind.