Has it not, then, become plain to those who have inherited the earth in the wake of the former generations that, had We so willed, We could have afflicted them for their sins, (they, however, are heedless to basic facts and so) We seal their hearts so that they hear nothing. 100 Those cities - We relate to you, [O Muhammad], some of their news. And certainly did their messengers come to them with clear proofs, but they were not to believe in that which they had denied before. Thus does Allah seal over the hearts of the disbelievers. 101 We did not find the covenant upheld by the majority of them, but We found most of them evildoers. 102 Then after them We sent Moses with Our signs to Pharaoh and his chiefs, but they wrongfully rejected them: So see what was the end of those who made mischief. 103 Moses said: 'Pharaoh, I am a Messenger from the Lord of the Worlds, 104 [Who is] obligated not to say about Allah except the truth. I have come to you with clear evidence from your Lord, so send with me the Children of Israel." 105 Said he, 'If thou hast brought a sign, produce it, if thou speakest truly.' 106 So he cast his staff; and behold, it was a serpent manifest. 107 and he drew forth his hand, and it appeared [shining] white to the beholders. 108