The dead land is a sign for them. We revive it, and from it produce grain from which they eat. 33 And We make therein gardens of palms and grapevines and We make springs to flow forth in it, 34 so that they may eat of the fruit thereof, though it was not their hands that made it. Will they not, then, be grateful? 35 Glory be to Him Who created all the sexual pairs, of that which the earth groweth, and of themselves, and of that which they know not! 36 And a sign for them is the night, We withdraw therefrom the day, and behold, they are in darkness. 37 And the sun runs [on course] toward its stopping point. That is the determination of the Exalted in Might, the Knowing. 38 We have appointed stages for the moon till it returns in the shape of a dry old branch of palm-tree. 39 Neither is it allowable to the sun that it should overtake the moon, nor can the night outstrip the day; and all float on in a sphere. 40 Another sign for them is that We carried their offspring in the laden Ark. 41 We have created for them the like of it in which they ride. 42 And if We will, We can drown them, so there would be no help in their distress, nor would they be saved. 43 Except by way of Mercy from Us, and by way of (world) convenience (to serve them) for a time. 44 When they are told, "guard yourselves against what is before you and what is behind you, in order that you may be shown mercy," [they turn away]. 45 None of the signs of their Lord ever comes to them but they turn away from it. 46 When they are told: "Spend of what God has given you," the unbelievers say to those who believe: "Why should we feed those whom God should have fed if He pleased?" You are only in palpable error. 47 They say: “When will this threat (of Resurrection) come to pass? Tell us if indeed you are truthful.” 48 They will not (have to) wait for aught but a single Blast: it will seize them while they are yet disputing among themselves! 49 Then they will be unable to make a will, nor shall they return to their kinsmen. 50