In chapters 10...

In chapters 10:38 and 11:13 the Qur'an declares that if it is the word of man then detractors of Islam should produce similar words about every subject treated in the Qur'an, namely, belief in the after-life, morals, laws, stories of past generations and other prophets, wisdom and advice.

The Qur'an urges them to seek help anywhere if they do not realize that it is the word of God and not of man, but adds that even if jinn and man joined forces together they would not be able to produce a Qur'an like it. In chapter 2:23 the Qur'an challenges those who consider it merely the speech of Muhammad to produce a book similar to it or even just one chapter like it.

The force of this challenge becomes clear when we realize that it is issued for someone whose life should resemble that of Muhammad, namely, the life of an orphan, uneducated in any formal sense, not being able to read or write and grew up in the unenlightened age of the jahiliyah period (the age of ignorance) before Islam. In 4:82 the Qur'an asks why no inconsistencies or changes…