Qur'anic verses - The Allegory of Abraham:

 

Abraham lived among the Chaldeans, who had great knowledge of the stars and heavenly bodies. But Abraham saw past that physical world and into the spiritual world beyond. God showed him the spiritual glories behind the magnificent powers and laws of the physical universe.
     
  This allegory shows the stages of Abraham's spiritual enlightenment and the search for the one true God. His ancestral idols worship meant nothing to him. So, Abraham started to examine worshipping distant beautiful shiny stars, which the vulgar endue with a power which does not reside in them.
     
  Continuing the allegory, the moon, although looking bigger and brighter than a distant star, turns out on closer knowledge, not only to set like the star, but to change in shape from hour to hour and even reflects light rather than being a source of light. That is not God! Abraham turned to search in the day time leaving behind the darkness of the night.
     
  The next stage in the allegory was the sun. Its size and brightness are unmistakable to the naked eye. Its rays spread over our planet. But is it the biggest or the only one in this universe? Is it unique in any sense or has it power over other stars? Could it be a god of our earth besides thousands of other bigger and brighter gods in this expanse universe?
     
  Abraham abjured the folly of his ancestral worship and all heavenly bodies for the one true God.