Is it not a guidance to those who inherit the earth after those who inhabited it that, did We will, We would smite them because of their sins, sealing their hearts so they do not hear? 100 Those were the towns whose story We relate unto you (O Muhammad SAW). And there came indeed to them their Messengers with clear proofs, but they were not such as to believe in that which they had rejected before. Thus Allah does seal up the hearts of the disbelievers (from each and every kind of religious guidance). 101 We found most of them untrue to their covenants, indeed We found most of them to be defiant. 102 Then we raised after them Musa with Our communications to Firon and his chiefs, but they disbelieved in them; consider then what was the end of the mischief makers. 103 Moses said: 'Pharaoh, I am a Messenger from the Lord of the Worlds, 104 so constituted that I cannot say anything about God but the truth. I have now come unto you with a clear evidence from your Sustainer: let, then, the children of Israel go with me!" 105 He said: "If you have brought a sign then display it, if what you say is true." 106 So Moses threw his staff, and suddenly it was a serpent, manifest. 107 And he drew forth his hand, and lo! it was white to the beholders. 108