But [let them always remember that] if We lengthen a human being's days, We also cause him to decline in his powers [when he grows old]: will they not, then, use their reason? 68 We have not taught (Muhammad) to versify, nor is it worthy of him. This is nothing but a reminder and illuminating discourse, 69 That it may warn him who would have life, and (that) the word may prove true against the unbelievers. 70 Observe they not that We have created for them, of that which Our hands have worked, cattle: so that they are their owners. 71 And that We have subjected them to their (use)? of them some do carry them and some they eat: 72 other uses also they have in them, and beverages. What, will they not be thankful? 73 And take other gods apart from God that they may perhaps give them help. 74 but they are not able to help them: rather they will be brought before God as their allied host. 75 So be not grieved by what they say. We certainly know what they hide and disclose. 76 Does man not see that We created him of a sperm drop, and lo! he is flagrantly contentious? 77 And he propoundeth for us a similitude, and forgetteth his creation; he saith: who shall quicken the bones when they are decayed? 78 Say: He will revive them Who produced them at the first, for He is Knower of every creation, 79 He Who has made for you the fire (to burn) from the green tree, so that with it you kindle (fire). 80 Has He Who created the heavens and the earth no power to create the likes of them? Yes, indeed, He is the Superb Creator. 81 When He wills a thing, His command is to say to it 'Be', and it is! 82 Therefore Purity is to Him in Whose Hand* is the control over all things and it is towards Him that you will be returned. (Used as a metaphor to mean Power). 83