Is it not clear to those who inherit the earth in succession from its (previous) possessors, that had We willed, We would have punished them for their sins. And We seal up their hearts so that they hear not? 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 most of them true to their covenants; indeed We found most of them to be transgressors. 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! 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 Pharaoh said: if you have brought a sign, then bring it forth if you are truthful.' 106 Therefore Moosa put down his staff – it immediately turned into a visible python. 107 And he drew forth his hand, and lo, it was white to the beholders. 108