Those who do not believe in the Day of Judgment have incurred upon themselves a great loss. When the Day of Judgment suddenly comes upon them, they will sink under the burden of their sins in grief for their neglecting that day. Terrible indeed will be their burden! 31 The life of this world is nothing but a sport and a pastime, and the life of the Hereafter is far better for those who seek to ward off their ruin. Will you not, then, understand? 32 We know indeed that it grieves thee the things they say; yet it is not thee they cry lies to, but the evildoers - it is the signs of God that they deny. 33 Messengers indeed have been denied before thee, and they were patient under the denial and the persecution till Our succour reached them. There is none to alter the decisions of Allah. Already there hath reached thee (somewhat) of the tidings of the messengers (We sent before). 34 If you find their rejection hard to bear, then seek a tunnel into the ground or a ladder into the sky, if you can, and bring them a sign. Had God so willed, He would indeed have given them all [His] guidance. So do not be among the ignorant. 35 ۞ It is only those who hear (with sincere hearts) that accept faith; and Allah will raise these people dead of heart, then towards Him they will be herded. 36 They also say, 'Why has no sign been sent down upon him from his Lord?' Say: 'Surely God is able to send down a sign, but most of them know not.' 37 And there is no animal that walks upon the earth nor a bird that flies with its two wings but (they are) genera like yourselves; We have not neglected anything in the Book, then to their Lord shall they be gathered. 38 But those who deny Our verses are deaf and dumb within darknesses. Whomever Allah wills - He leaves astray; and whomever He wills - He puts him on a straight path. 39 Say: "Have you thought if the punishment of God or the Hour (of Doom) came upon you, would you call to any other than God? Answer, if you are men of truth." 40 No, on Him alone you will call, and He will remove that for which you call upon Him, if He will. Then you will forget what you associate (with Him). 41