We have explained in various ways all things to men in this Qur'an; but of all things man is most contentious. 54 And nothing prevents men from believing when the guidance comes to them, and from asking forgiveness of their Lord, except that what happened to the ancients should overtake them, or that the chastisement should come face to face with them. 55 We send not the messengers save as bearers of good news and warners. Those who disbelieve contend with falsehood in order to refute the Truth thereby. And they take Our revelations and that wherewith they are threatened as a jest. 56 Who is more wicked than he who has been reminded of the revelations of his Lord, then turns away from them and forgets what his own hands have done? We have cast veils over their hearts lest they understand Our words, and made them hard of hearing. Call them as you may to the right path, they shall never be guided. 57 Thy Lord is the Forgiver, Full of Mercy. If He took them to task (now) for what they earn, He would hasten on the doom for them; but theirs is an appointed term from which they will find no escape. 58 And (as for) these towns, We destroyed them when they acted unjustly, and We have appointed a time for their destruction. 59