Those people who have rejected (Muhammad as a Prophet) say, "Why has no Sign been sent down to him from his Lord?43 Say, "Allah leads astray whom He will; and He leads to Himself only those who turn to Him."44 Such are the people who have accepted (the Message of this Prophet,) and their hearts find comfort in the remembrance of Allah. Note it well that it is Allah's remembrance alone that brings comfort to hearts. Blessed are those who have accepted the Message and done righteous deeds: they have a good end. O Muhammad ! We have sent you as a Messenger in this way45 among a people before whom many peoples have passed away so that you should recite to them the Message which We have sent down to you; yet they are rejecting the most Compassionate Lord.46 Say to them, "My Lord is He: there is no deity but He: I have placed my full trust in Him and He is my sole Resort." And what (do you think) would have been the result, if We had sent a Qur'an that would have caused the mountains to move or cleft the earth asunder or made the dead speak?47 (It is not difficult at all to show such Signs) for Allah has full power over everything.48 Have the Believers (still any expectations of a Sign in answer to the demand of the disbelievers and) not given up all hope, (knowing) that Allah could have guided all mankind aright,49 if He had so desired? As for the disbelievers, because of their misdeeds, one affliction or the other does not cease to visit them every now and then, or come near their home. It will go on like this until Allah's threat come to pass. Indeed, Allah does not fail to bring about His threat. Other Messengers have also been mocked before you, but I have always given respite to the disbelievers and then seized upon them at its end. Just see how terrible had been My Scourge!