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 And We found most of them not true to their words; and indeed We found most of them disobedient. 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 all Being, 104 And it behoves me to say nothing about Allah except what is true. I have come to you with a clear sign of having been sent from your Lord. So let the Children of Israel go with me.' 105 Said Firaun, “If you have come with a sign, then present it if you are truthful!” 106 Thereupon [Moses] threw down his staff, and lo! it was a serpent, plainly visible; 107 Then he drew out his hand and it was luminous to the onlookers. 108