Does it not guide the people who inherit the land from former people that We can punish them for their sins if We will? And seal up their hearts so that they would not be able to lend an ear to words of guidance? 100 Those cities We relate to thee tidings of; their Messengers came to them with the clear signs, but they were not the ones to believe in that they had cried lies before; so God seals the hearts of the unbelievers. 101 We did not find most of them true to their covenants; indeed We found most of them to be transgressors. 102 Then after them We sent Musa (Moses) with Our Signs to Fir'aun (Pharaoh) and his chiefs, but they wrongfully rejected them. So see how was the end of the Mufsidun (mischief-makers, corrupts, etc.). 103 And Musa said: O Firon! surely I am an apostle from the Lord of the worlds: 104 “It is obligatory for me not to speak concerning Allah except the truth; I have come to you all with a clear sign from your Lord, therefore let the Descendants of Israel go with me.” 105 [Pharaoh] said, "If you come with a sign, then produce it, if you are telling the truth." 106 Then (Moses) threw his rod, and behold! it was a serpent, plain (for all to see)! 107 And he drew forth his hand, when lo: it was white unto the beholders. 108