We have explained in various ways in this Quran, for the benefit of mankind, all kinds of examples, but man is most contentious. 54 Nothing prevented people from believing and seeking the forgiveness of their Lord when guidance came to them, unless they are waiting for the fate of the ancients to overtake them, or that the punishment should come upon them face to face. 55 The only reason for Our sending the Messengers is to give the human being the glad news of Our mercy and to warn him about Our wrath. The disbelievers argue by false means to refute the Truth. They mock My miracles and warnings. 56 And who doth greater wrong than he who hath been reminded of the revelations of his Lord, yet turneth away from them and forgetteth what his hands send forward (to the Judgment)? Lo! on their hearts We have placed coverings so that they understand not, and in their ears a deafness. And though thou call them to the guidance, in that case they can never be led aright. 57 Your Lord is All-Forgiving, full of mercy. Had He wished to take them to task for their doings, He would have hastened in sending His scourge upon them. But He has set for them a time-limit which they cannot evade. 58 And these towns (population, 'Ad, Thamud, etc.) We destroyed when they did wrong. And We appointed a fixed time for their destruction. 59