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 him poetry; it is not seemly for him. It is only a Remembrance and a Clear Koran, 69 to the end that it may warn everyone who is alive [of heart,] and that the word [of God] may bear witness against all who deny the truth. 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 that We have subjected them to their (use)? of them some do carry them and some they eat: 72 And for them therein are [other] benefits and drinks, so will they not be grateful? 73 They chose idols besides God in the hope of receiving help from them, but they will not be able to help them. 74 They are not able to give them succour; whereas they shall be against them host brought forward. 75 So let not their speech grieve thee (O Muhammad). Lo! We know what they conceal and what proclaim. 76 Has not man regarded how that We created him of a sperm-drop? Then lo, he is a manifest adversary. 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 who brought them into being in the first instance will give them life again: He has knowledge of every type of creation: 79 Who hath appointed for you fire from the green tree, and behold! ye kindle from it. 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 His command is only when He intends a thing that He says to it, "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