We have set forth for people in this Koran all manner of parables; the human is the most disputatious of things. 54 And nothing has prevented the people from believing when guidance came to them and from asking forgiveness of their Lord except that there [must] befall them the [accustomed] precedent of the former peoples or that the punishment should come [directly] before them. 55 And We send not apostles save as bringers of glad tidings and warners; and those who disbelieve dispute with falsehood that they rebut thereby the truth; and they take My signs and that whereof they are warned as a mockery. 56 And who doth more wrong than one who is reminded of the Signs of his Lord, but turns away from them, forgetting the (deeds) which his hands have sent forth? Verily We have set veils over their hearts lest they should understand this, and over their ears, deafness, if thou callest them to guidance, even then will they never accept guidance. 57 And your Lord is the Oft Forgiver, the Merciful; if He seized them for their deeds, He would soon send the punishment upon them; but for them is an appointed time from which they will not find any refuge. 58 And these towns (population, 'Ad, Thamud, etc.) We destroyed when they did wrong. And We appointed a fixed time for their destruction. 59