45. The arguments contained in (Ayat 37) may be elaborated like this:
(1) The Quran confirms that which had been revealed before and presents the same fundamental principles and teachings which were taught by the Prophets who came before Muhammad (peace be upon him). Had he invented the Quran, he would have made additions to the truths of the former books in order to make himself conspicuous.
(2) The Quran explains in detail and amplifies the fundamental principles and teachings contained in “the Book”, that is, the Scriptures brought by the former Prophets, and adds more evidence and explanations to it so that it may be better understood and practiced.