THUS, INDEED, have We given in this Qur'an many facets to every kind of lesson [designed] for [the benefit of] mankind. However, man is, above all else, always given to contention: 54 And naught preventeth mankind from believing when the guidance hath come unto them, and from asking foregiveness of their Lord, but that there may come unto them the dispensation of the ancients, or that the torment may come unto them face to face. 55 We only send the messengers to give Glad Tidings and to give warnings: But the unbelievers dispute with vain argument, in order therewith to weaken the truth, and they treat My Signs as a jest, as also the fact that they are warned! 56 Who is greater in evil than he who, when reminded of the verses of his Lord, turns away from them and forgets what his hands have sent before him? We have placed veils over their hearts lest they should understand it, and there is heaviness in their ears. Even if you call them to guidance, they will never be guided. 57 Yet, [withal,] thy Sustainer is the Truly-Forgiving One, limitless in His grace. Were He to take them [at once] to task for whatever [wrong] they commit, He would indeed bring about their speedy punishment [then and there]: but nay, they have a time-limit beyond which they shall find no redemption 58 And these towns (population, 'Ad, Thamud, etc.) We destroyed when they did wrong. And We appointed a fixed time for their destruction. 59