Is it not plain to those who inherit the earth after its inhabitants that if We willed We could smite them for their sins and set a seal upon their hearts, so that they do not hear. 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 found most of them untrue to their covenants, indeed We found most of them to be defiant. 102 Then, after them, We sent Moses with our tokens unto Pharaoh and his chiefs, but they repelled them. Now, see the nature of the consequence for the corrupters! 103 And Moses said, "O Pharaoh, I am a messenger from the Lord of the worlds 104 Approved upon condition that I speak concerning Allah nothing but the truth. I come unto you (lords of Egypt) with a clear proof from your Lord. So let the Children of Israel go with me. 105 He answered: 'If you have come with a sign, show it to us if you are of the truthful' 106 Thereupon Moses threw his rod, and suddenly it was a veritable serpent. 107 And he drew out his hand; thereupon it was white [with radiance] for the observers. 108