Evidence (of the truth) for them is how We revived the dead earth 33 And We make therein gardens of palms and grapevines and We make springs to flow forth in it, 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 A token unto them is night. We strip it of the day, and lo! they are in darkness. 37 The sun is running its course to its appointed place. That is the ordaining of the All-Mighty, the All-Knowing. 38 And We have appointed positions for the moon till it returns like an old branch of the date palm. 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 Another sign for them is that We carried their offspring in the laden Ark. 41 and created for them similar things to ride. 42 Had We wanted, We could have drowned them and nothing would have been able to help or rescue them 43 save as a mercy from Us, and enjoyment for a while. 44 And when it is said to them, 'Fear what is before you and what is behind you; haply you will find mercy' -- 45 Never does any Sign of their Lord come to them, but they turn away from it. 46 And when they are told, "Spend ye of (the bounties) with which Allah has provided you," the Unbelievers say to those who believe: "Shall we then feed those whom, if Allah had so willed, He would have fed, (Himself)? Ye are in nothing but manifest error." 47 And they say: When will this threat come to pass, if you are truthful? 48 [And they are unaware that] nothing awaits them beyond a single blast [of God's punishment,] which will overtake them while they are still arguing - [against resurrection]: 49 And they will not be able [to give] any instruction, nor to their people can they return. 50