Those who associate [others with God] say, "If God had so willed we would not have worshipped anything besides Him, neither we nor our fathers, nor would we have forbidden anything without His sanction." So did those who went before them. The duty of the messengers is only to convey the message clearly. 35 And assuredly We have raised in every community an apostle saying: worship Allah and avoid the devil. Then of them were some whom Allah guided, and of them were some upon whom the straying was justified. Wherefore travel about on the earth, and look on what wise hath been the end of the disbelievers. 36 (Muhammad), even though you have a strong desire to guide them, be sure that God will not guide those who have gone astray and no one will be able to help them. 37 And they swear by Allah their most binding oaths (that) Allah will not raise up him who dieth. Nay, but it is a promise (binding) upon Him in truth, but most of mankind know not, 38 In order that He may make manifest to them the truth of that wherein they differ, and that those who disbelieved (in Resurrection, and in the Oneness of Allah) may know 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