And certainly We have explained in this Quran every kind of example, and man is most of all given to contention. 54 What is it that prevented mankind from believing when the guidance came to them, and from asking forgiveness of their Lord, except that they would like to be treated as the nations of yore, or that they would like to see the scourge come upon them face to face? 55 But We send [Our] message-bearers only as heralds of glad tidings and as warners - whereas those who are bent on denying the truth contend [against them] with fallacious arguments, so as to render void the truth thereby, and to make My messages and warnings a target of their mockery. 56 And who doth greater wrong than he who is admonished with the signs of His Lord yet turneth away from them and forgetteth that which his hands have sent forth? Verily We have set up veils over their hearts lest they should understand it, and in their ears a heaviness; and if thou callest them to the guidance, lo! they will not let themselves be guided ever. 57 Your Lord is Forgiving, Owner of Mercy. Had it been His will to take them to task for what they earned, He would have hastened their punishment; but they have an appointed hour from which they will never escape. 58 And these towns – We destroyed them when they committed injustice, and We had set an appointed time for their destruction. 59