The dead land is a sign for them. We revive it, and from it produce grain from which they eat. 33 And We place therein gardens of the date-palms and vines; and We therein cause to gush forth springs. 34 so that they may consume the fruits and whatever their hands prepare. 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 for them is the night, We withdraw therefrom the day, and behold, they are in darkness. 37 And the sun runs on its fixed course for a term (appointed). That is the Decree of the All-Mighty, the All-Knowing. 38 We have ordained phases for the moon until finally it becomes like an old date-stalk. 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 That We bore their progeny in the laden ark is a sign for them; 41 And We have created for them similar ships, in which they now ride. 42 And if We should will, We could drown them; then no one responding to a cry would there be for them, nor would they be saved 43 Unless by Our benevolence, to reap advantage for a time. 44 When it is said to them: 'Have fear of that which is before you and behind you in order that you find 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 from that which Allah has provided for you," those who disbelieve say to those who believe, "Should we feed one whom, if Allah had willed, He would have fed? You are not but in clear error." 47 And they say: When will this threat come to pass, if you are truthful? 48 They are awaiting only for one Cry to seize them while they are yet disputing, 49 Therefore neither able to make a will, nor returning to their homes. 50