And He it is Who created the heavens and the earth in six periods-- and His dominion (extends) on the water-- that He might manifest to you, which of you is best in action, and if you say, surely you shall be raised up after death, those who disbelieve would certainly say: This is nothing but clear magic.

Surely those who disbelieve and turn away from Allah's way and oppose the Messenger after that guidance has become clear to them cannot harm Allah in any way, and He will make null their deeds.