Let the dead earth be a Sign for them. We gave it life and produced from it grain whereof they eat. 33 We have laid out gardens of dates and grapes upon it, and made springs of water flow, 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 Purity is to Him Who created all pairs, from what the earth grows, and of themselves, and from the things they do not know. 36 And a sign unto them is the night. We draw off the day therefrom, and lo! they are darkened. 37 And the sun runs its course for its final destination; this is a command of the Almighty, the All Knowing. 38 and [in] the moon, for which We have determined phases [which it must traverse] till it becomes like an old date-stalk, dried-up and curved: 39 The sun shall not outstrip the moon, nor shall the night outstrip the day. Each is floating in an orbit. 40 That We bore their progeny in the laden ark is a sign for them; 41 And We have created for them of the like thereunto whereon they ride. 42 We could have drowned them if We pleased, and none would have answered their cry for help, nor would they have been saved, 43 save as a mercy from Us, and enjoyment for a while. 44 But when it is said to them, "Beware of what is before you and what is behind you; perhaps you will receive mercy... " 45 yet never any sign of the signs of their Lord comes to them, but they are turning away from it. 46 And when it is said to them: “Spend (in the Way of Allah) out of the sustenance that Allah has provided you,” the unbelievers say to the believers: “Shall we feed him whom, Allah would have fed, had He so wished?” Say: “You are in evident error.” 47 And they say: "When will this promise (i.e. Resurrection) be fulfilled, if you are truthful?" 48 They do not await except one blast which will seize them while they are disputing. 49 And they will not be able [to give] any instruction, nor to their people can they return. 50