Has it not become clear to those who inherited the earth after its [previous] people that if We willed, We could afflict them for their sins? But We seal over their hearts so they do not hear. 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 We did not find the covenant upheld by the majority of them, but We found most of them evildoers. 102 After those We sent forth Moses with Our signs to Pharaoh and his nobles, but they dealt with Our signs unjustly. Observe, then, what happened to the mischief-makers. 103 Moses said: O Pharaoh! Lo! I am a messenger from the Lord of the Worlds, 104 worthy to say nothing regarding God except the truth. I have brought a clear sign to you from your Lord; so send forth with me the Children of Israel.' 105 He said: if thou hast brought a sign, forth with it then, if thou art of the truth-tellers. 106 Then he flung down his staff and lo! it was a serpent manifest; 107 And he drew forth his hand, and lo! it was white to the beholders. 108