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 And We have not taught him (Prophet Mohammed- peace and blessings be upon him) to recite poetry, nor does it befit him; it is nothing but an advice and the bright Qur’an. 69 to warn all who are truly alive, and to justify the word [God's verdict] against the deniers. 70 Do they not see Our handiwork: We created for them cattle which they own? 71 And We have tamed them for them, so some of them they ride, and some of them they eat. 72 Benefits and (divers) drinks have they from them. Will they not then give thanks? 73 They have set up other gods besides God, hoping to be helped by them, 74 they are unable to succour their devotees, even though to them they may [appear to] be hosts drawn up [for succour]. 75 So do not let their saying grieve thee; assuredly We know what they keep secret and what they publish. 76 Has not man regarded how that We created him of a sperm-drop? Then lo, he is a manifest adversary. 77 And he presents for Us an example and forgets his [own] creation. He says, "Who will give life to bones while they are disintegrated?" 78 Say: "He who brought them into being in the first instance will give them life [once again,] seeing that He has full knowledge of every act of creation: 79 Who gave you fire from a green tree, with which you ignite the flame." 80 Is, then, He who has created the heavens and the earth not able to create [anew] the like of those [who have died]? Yea, indeed - for He alone is the all-knowing Creator: 81 when He decrees a thing, He need only say, "Be!" and it is. 82 So glory be to Him, in whose hand is the dominion of everything, and unto whom you shall be returned. 83