I must confess that as an inherently untrusting individual I would probably not believe in God had it not been for direct experiences I had with him (not that I can prove it to you).
Now, back to the ethic of reciprocity or the golden rule. What would the world be like if everybody tried their very best to follow that rule?
It would be Utopia. Quite literally, it would be Heaven on Earth. This is God's Law and it is perfect. Yet we continue to stubbornly perpetuate the myth that the ends justify the means and that greed is a virtue. We continue to believe that we are smarter than God and his prophets. Instead of forgiveness, we demand revenge! What law are we following? Not God's Law, but the Law of Satan!: "Do unto others as they do unto you."