Let the dead earth be a Sign for them. We gave it life and produced from it grain whereof they eat. 33 and We made therein gardens of palms and vines, and therein We caused fountains to gush forth, 34 That they may enjoy the fruits of this (artistry): It was not their hands that made this: 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 They have a sign in the night: We withdraw from it the [light of] day -- and they are left 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 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 Neither does it lie in the sun's power to overtake the moon nor can the night outstrip the day. All glide along, each in its own orbit. 40 And [it ought to be] a sign for them that We bear their offspring [over the seas] in laden ships, 41 And We created for them from the likes of it that which they ride. 42 And if We will, We shall drown them, and there will be no shout (or helper) for them (to hear their cry for help) nor will they be saved. 43 Except as a mercy from Us and provision for a time. 44 When they are told, "Fear ye that which is before you and that which will be after you, in order that ye may receive Mercy," (they turn back). 45 and no message of their Sustainer's messages ever reaches them without their turning 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 And they say: When will this threat come to pass, if you are truthful? 48 They await but one Shout, which will surprise them while they are disputing. 49 and they will not even be able to make a testament, nor to return to their households. 50