And a sign for them is the dead earth; We gave it life and We produced from it grain, so they eat from it. 33 And We produce therein orchard with date-palms and vines, and We cause springs to gush forth therein: 34 So that they may eat of the fruit thereof, and their hands made it not. Will they not, then, give thanks? 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 runneth to its appointed term: that is the disposition of the Mighty, the Knowing. 38 And the moon, We have measured for it mansions (to traverse) till it returns like the old dried curved date stalk. 39 [and] neither may the sun overtake the moon, nor can the night usurp the time of day, since all of them float through space [in accordance with Our laws]. 40 And a sign for them is that We carried their seed in the laden ship, 41 and [that] We create for them things of a similar kind, on which they may embark [in their travels]; 42 Should We so wish, We can drown them, and there will be none to heed their cries of distress, nor will they be rescued. 43 But (by) mercy from Us and for enjoyment till a time. 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 and no message of their Sustainer's messages ever reaches them without their turning away from it. 46 When they are told to spend for the cause of God out of what He has provided for them for their sustenance, the disbelievers say to the believers, "Should we feed those whom God has decided to feed? You are in plain error." 47 And they add, "When is this promise [of resurrection] to be fulfilled? [Answer this] if you are men of truth!" 48 They are only waiting for a single blast that will seize them, but they will go on contending. 49 Then they cannot make bequest, nor can they return to their own folk. 50