Those will have lost who deny the meeting with Allah, until when the Hour [of resurrection] comes upon them unexpectedly, they will say, "Oh, [how great is] our regret over what we neglected concerning it," while they bear their burdens on their backs. Unquestionably, evil is that which they bear. 31 And this world's life is naught but a play and an idle sport and certainly the abode of the hereafter is better for those who guard (against evil); do 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 Rejected were the messengers before thee: with patience and constancy they bore their rejection and their wrongs, until Our aid did reach them: there is none that can alter the words (and decrees) of Allah. Already hast thou received some account of those messengers. 34 If their aversion still weighs upon you, seek out a tunnel (going deep) into the earth, or a ladder reaching out to the skies, and bring them a sign: (Even then they will not believe). If God had willed He would have brought them all to the right path. So be not like the pagans. 35 ۞ Only those who have understanding will accept your faith. (Those who have no understanding) are like the dead whom God will resurrect and to Him will all return. 36 They ask, "Why has no sign been sent down to him from his Lord?" Say, "God alone has the power to send down a sign." But most of them do not understand: 37 although there is no beast that walks on earth and no bird that flies on its two wings which is not [God's] creature like yourselves: no single thing have We neglected in Our decree. And once again: Unto their Sustainer shall they [all] be gathered. 38 And they who give the lie to Our messages are deaf and dumb, in darkness deep. Whomever God wills, He lets go astray; and whomever He wills, He places upon a straight way. 39 Say: Can ye see yourselves, if the punishment of Allah come upon you or the Hour come upon you, (calling upon other than Allah)? Do ye then call (for help) to any other than Allah? (Answer that) if ye are truthful. 40 Nay, but it is Him alone that you will invoke - whereupon He may, if He so wills, remove that [ill] which caused you to call unto Him; and you will have forgotten all that to which you [now] ascribe divinity side by side with Him." 41