Home > Surah 21 - The Prophets
Surah 21 is a Meccan chapter that serves as a chronological and thematic summary of the messengers sent by God. It emphasizes that every prophet—from Abraham to Jesus—was a human being who faced similar challenges and delivered the same core message of monotheism.
Its primary objective is to show Muhammad as the final link in this unbroken chain of divine revelation, using the history of the "People of the Book" as its primary validation.
Surah 21:48:
And We verily gave Moses and Aaron the Criterion (of right and wrong) and a light and a Reminder for those who keep from evil.
The Quran calls the Torah the Furqan.
In any logical system, the Criterion is the unchanging standard. If the Quran "confirms" the Furqan, it must match the Furqan.
However, the Torah (and the wider Old Testament) establishes a sacrificial system and a Messianic expectation of a "Son of God" that the Quran explicitly rejects. If the measurements of the Furqan (the Bible) and the Quran don't match, the Quran—by its own definition—fails the test of the Criterion.
God describes the Mosaic revelation as a "Light."
If the Torah was corrupted into a book that teaches "false" history or "shirk," then the "Light" has become "Darkness." To claim the Bible was corrupted is to claim that man had the power to extinguish a light that God explicitly provided for guidance. If God cannot keep the light on in the Torah, there is no reason to believe He can keep it on in the Quran.
Muslims often cite Surah 15:9, where Allah promises to guard the Dhikr (Reminder). Since 21:48 explicitly names the Torah as the Dhikr, it must be included in that promise of divine protection. If the Torah was corrupted, then 15:9 is a false promise. If the Torah was not corrupted, then the Bible we have today (which matches the 7th-century manuscripts) is the protected Word of God.
Surah 21:48 calls the Bible (the Torah) a Criterion, a Light, and a Reminder. A triple lock.
If the Bible was corrupted, it can no longer be a 'Criterion' because it would be a false standard.
If the Bible was corrupted, it can no longer be a 'Light' because it would lead people into the darkness of error.
If the Bible was corrupted, it is no longer a 'Reminder' of God’s truth, but a reminder of man’s ability to change God’s Word.
By giving the Bible these three titles, the Quran has backed itself into a corner:
Which one will you choose?"