To say that the Quran is a revelation from the All-Powerful and Wise God amounts to giving on His behalf a definite standard on the basis of which its veracity can be demonstrated. Its divine origin means, moreover, that it will prove to be unassailable. The Quran will, in any case, prevail over its opponents. This statement was made in the Makkan period. At that time, circumstances were entirely against the Quran. But later history has most wonderfully testified to the veracity of this statement. The call given by the Quran met with the greatest success in history. Similarly, the notion of revelation from God the Omniscient and Almighty implies that all its contents must be based on knowledge and wisdom. The Quran was revealed before the age of science. But now, even in this age of science nothing mentioned in the Quran has been proved irrational. Furthermore, all the things in the Universe spread out far and near are testimonies to the truth of the Quran’s message. However, this testimony will be valid only for one who possesses a receptive and believing mind; who is capable of grasping the real meaning of such matters as are expressed in the language of signs.