The Quran is the word of the Lord of the Worlds, which Allah revealed to His Messenger Muhammad (peace and blessings of Allah be upon him), to bring mankind forth from darkness into light:

“It is He Who sends down manifest Ayaat (proofs, evidences, verses, lessons, signs, revelations, etc.) to His slave (Muhammad) that He may bring you out from darkness into light

[al-Hadeed 57:9 – interpretation of the meaning]

Allah has told us in the Quran the stories of the earlier and later generations and the creation of the heavens and the earth. He has explained in detail what is halaal and what is haraam, the basics of good manners and morals, the rulings of worship and dealings with others, the lives of the Prophets and the righteous, and the reward and punishment of the believers and disbelievers.