Fear of God is the end of reasoning.
I agree, but not if you ask a person who believes in a fear based religion, which is most of them.
Those who fear God because he wants to burn them in hell for eternity if they don't grovel before him have already taken leave of their senses - it is a monster that they are afraid of, and God should not be a monster. Any "God" that tolerates a hell in his "perfect" creation is a Devil.