And assuredly We have variously propounded in this Qur'an for mankind every kind of similitude; and man is of all things the most disputing. 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 And We send not the Envoys, but good tidings to bear, and warning. Yet do the unbelievers dispute with falsehood, that they may rebut thereby the truth. They have taken My signs, and what they are warned of, in mockery. 56 And who is more unjust than one who, when reminded of the signs of his Lord, turns away from them and forgets what his hands have sent forward? We have put covers on their hearts so as not to understand the Qur’an, and deafness in their ears; and even if you call them to guidance, they will never attain the right path. 57 And thy Lord is the Forgiver, Owner of mercy. Were He to call them to account for that which they have earned; He would have hastened for them torment; but for them is a tryst beside which they cannot find a place to betake themselves to. 58 And those cities - We destroyed them when they wronged, and We made for their destruction an appointed time. 59