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 verily We have raised in every nation a messenger, (proclaiming): Serve Allah and shun false gods. Then some of them (there were) whom Allah guided, and some of them (there were) upon whom error had just hold. Do but travel in the land and see the nature of the consequence for the deniers! 36 Though thou art ever so eager to guide them, God guides not those whom He leads astray; they have no helpers. 37 And they swear by God the most solemn of oaths that God would not raise him who dieth. Yea! it is a promise on Him incumbent but most of mankind know not. 38 (That is bound to happen in order that) He may make clear to them the reality regarding the matters on which they differ and that the unbelievers may realize that they were liars. 39 And Our command for anything to occur, when We will it, is that We only say to it, “Be” – and it thereupon happens. 40