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 he or it (Muhammad SAW or the Quran) may give warning to him who is living (a healthy minded the believer), and that Word (charge) may be justified against the disbelievers (dead, as they reject the warnings). 70 Do they not see that We have created for them of what Our Hands have created, the cattle, so that they are their owners. 71 And We have subdued them unto them, so that some of them they have for riding and on some of them they feed? 72 And they have (other) benefits from them (besides), and they get (milk) to drink, will they not then be grateful? 73 Yet they have taken, apart from God, gods; haply they might be helped. 74 They (the appointed Gods) cannot help them; and they and their armies will come (to Us), as captives. 75 Muhammad, let not their words annoy you. We certainly know whatever they conceal or reveal. 76 Does not man see We created him from a drop of semen? Even then he becomes an open contender, 77 And he puts forth for Us a parable, and forgets his own creation. He says: "Who will give life to these bones when they have rotted away and became dust?" 78 Say: He will revive them Who produced them at the first, for He is Knower of every creation, 79 Who gave you fire from a green tree, with which you ignite the flame." 80 Is not He who created the heavens and the earth able to create the like of these? Yea! He is the Supreme Creator, the Knower. 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