Allah in His mercy sent His messenger Noah to guide his people. Noah was an excellent speaker and a very patient man. He pointed out to his people the mysteries of life and the wonders of the universe. He pointed out how the night is regularly followed by the day and that the balance between these opposites was designed by Allah the Almighty for our good. The night gives coolness and rest while the day gives warmth and awakens activity. The sun encourages growth, keeping all plants and animals alive, while the moon and stars assist in the reckoning of time, direction and seasons. He pointed out that the ownership of the heavens and the earth belongs only to the Divine Creator.
Therefore, he explained to his people, there cannot have been more than one deity. He clarified to them how the devil had deceived them for so long and that the time had come for this deceit to stop. Noah spoke to them of Allah's glorification of man, how He had created him and provided him with sustenance and the blessings of a mind. He told them that idol worshipping was a suffocating injustice to the mind. He warned them not to worship anyone but Allah and described the terrible punishment Allah would mete out if they continued in their evil ways.