Introduction to the Holy Quran
And this is a book which we have sent down, bringing blessings, and confirming the revelations which came before it: that you may warn the mother of cities and all around her. Surah al-An’am (The Cattle) 6:92
The above verse says the Quran has three purposes: bless, confirm, and warn. “Bless” and “warn” are simple enough. “Confirm” is the one that confuses many people. “Confirm” means “establish the truth or correctness of” (Oxford Dictionaries). The Quran then witnesses to the truth and correctness of the previous books. The Quran is NOT as some people teach, a correction to errors in the previous books.
In truth it confirms what went before it; for before this he sent down the Taurat and the Injil as guidance for mankind, and as the criterion for judging right and wrong. Surah al-Imran 3:3
The Quran affirms that the Taurat and Injil are true, and calls people to believe their message. Yet, it is sometimes wrongly assumed that the Quran is all a person really needs because it is the last of four heavenly books (Taurat, Zabur, Injil, Quran). But imagine an impatient student in a 4-year university program says, “I don’t really need the first 3 years of study — year 4 is all I need.” It’s obvious to all that the first 3 years of study are crucial in order to be able to grasp the content of year 4. In the same way, the Taurat, Zabur and Injil provide a necessary foundation to adequately understand the Quran.
If you are in doubt about what we have revealed to you, then ask those who have been reading Al-Kitab before you. Surah Yunus 10:94
For more information, see a short course called “The Eternal Word.”