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 (Muhammad) poetry, nor is it meet for him. This is naught else than a Reminder and a Lecture making plain, 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 Are they, then, not aware that it is for them that We have created, among all the things which Our hands have wrought, the domestic animals of which they are [now] masters? 71 We have subdued them to them, and some of them they ride, and some they eat; 72 and may have [yet other] benefits from them, and [milk] to drink? Will they not, then, be grateful? 73 And they have appointed Gods other than Allah, that perhaps they may be helped! 74 Instead, the disbelievers will be brought into the presence of God as the soldiers of the idols. 75 So do not let their sayings grieve you. Surely, We have knowledge of what they hide and all that they reveal. 76 IS MAN, then, not aware that it is We who create him out of a [mere] drop of sperm - whereupon, lo! he shows himself endowed with the power to think and to argue? 77 And he propoundeth for us a similitude, and forgetteth his creation; he saith: who shall quicken the bones when they are decayed? 78 (Muhammad), tell him, "He who gave them life in the first place will bring them back to life again. He has the best knowledge of all creatures. 79 [It is] He who made for you from the green tree, fire, and then from it you ignite. 80 Is He who created the heavens and the earth unable to create their like? Yes, indeed, He is the Creator, the Knower. 81 When He wills a thing He has only to say: "Be," and it is. 82 So exalted is He in whose hand is the realm of all things, and to Him you will be returned. 83