The dead land is a sign for them. We revive it, and from it produce grain from which they eat. 33 and We made therein gardens of palms and vines, and therein We caused fountains to gush forth, 34 so that they may eat its fruit, though it was not their hands that made this. 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 to them is the night: We draw forth from it the day, then lo! they are in the dark; 37 And the sun runs on to a term appointed for it; that is the ordinance of the Mighty, the 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 And a sign for them is that We carried their forefathers in a laden ship. 41 And We created for them from the likes of it that which they ride. 42 And if We list, We shall drown them, and there will be no shout for them, nor will they be saved. 43 unless it be a mercy from us, and as an enjoyment for a season. 44 When it is said unto them: Beware of that which is before you and that which is behind you, that haply ye may find mercy (they are heedless). 45 Indeed, not one of your Lord's signs comes to them without their turning away from it, 46 And when it is said to them: "Spend of that with which Allah has provided you," those who disbelieve say to those who believe: "Shall we feed those whom, if Allah willed, He (Himself) would have fed? You are only in a plain error." 47 Further, they say, "When will this promise (come to pass), if what ye say is true?" 48 They await but one Shout, which will surprise them while they are disputing. 49 They will have no time to make a will, nor shall they return to their own people. 50