The idolators say, 'If God had willed we would not have served; apart from Him, anything, neither we nor our fathers, nor would we have forbidden, apart from Him, anything.' So did those before them; yet is aught for the Messengers, but to deliver the manifest Message? 35 And indeed We sent to every nation a Noble Messenger (proclaiming) that “Worship Allah and beware of the devil”; therefore Allah guided some of them, and error proved true upon some of them; therefore travel in the land and see what sort of fate befell the deniers! 36 [Even] if you should strive for their guidance, [O Muhammad], indeed, Allah does not guide those He sends astray, and they will have no helpers. 37 And they swear by Allah their strongest oaths [that] Allah will not resurrect one who dies. But yes - [it is] a true promise [binding] upon Him, but most of the people do not know. 38 In order that He may make clear to them the matter in which they differed, and the disbelievers may realise that they were liars. 39 Indeed, Our word to a thing when We intend it is but that We say to it, "Be," and it is. 40