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 These were the (earlier) habitations whose accounts We have given to you. Their apostles came with clear proofs, but they did not believe what they once denied. That is how God seals the hearts of those who do not believe. 101 Most of them We found not men (true) to their covenant: but most of them We found rebellious and disobedient. 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: "O 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 Said Firaun, “If you have come with a sign, then present it if you are truthful!” 106 At this Moses threw down his staff, and lo, it became a live serpent. 107 Then he drew out his hand, and it appeared luminous to all beholders. 108