Define Reason. If you believe that Reason makes God unnecessary, then how do you explain how you acquired the ability to Reason and how can you be certain that you are, in fact, "reasonable." How do you explain Isaiah 55:8-9: "For my thoughts are not your thoughts, neither are your ways my ways,” declares the Lord. “As the heavens are higher than the earth, so are my ways higher than your ways and my thoughts than your thoughts." Where does that leave Reason when it is separate from faith?