A brief introduction...
“Disclaimer: No serious scientist of our days believes that Bible has any legitimacy to be claimed it’s an unchanged word (if any) of those Prophets mentioned in the Bible. Yet, I do no intend to offend practising and faithful Christians and Jews who believe in God and praise Him, the Almighty, day and night. Peace and blessing be with them!”
>>Hahaha..you make me laugh…there is not one book that has been more analyzed than the Bible, and of course you can find a lot of different opinions an hypothesis (give me some sources on “no serious scientists” please). The Documentary Hypothesis is (as the word says)…an hypothesis.. In the Western and Christian world you can talk about anything, not so in the Islamic one, it seems. It doesn’t seem to me that in any Islamic University (not even in the acclamated Azhar, where they prefer to “seriously investigate problems as “the nature of hermaphrodites and what part of heritage the hermaphrodites have to get: the one of a woman-or the one of a man”. Or issues about Breast-Feeding of Man!!), there is a professorship that investigates the origin(s) of the Qur’an. They cannot, because it would undermine the notion that the Qur’an was never tampered.) Here you can find some excellent articles about “Textual Criticism and the Qur'an” (actually only made by Western Orientalists (four Germans and two English scholars), because in the Islamic world something like that would be blasphemic; the examination of the Qur’anic text has neither been an easy, nor a safe one for non-Muslims - neither have Muslims ever endeavoured to formulate a critical text themselves: (Link)