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 Such were the townships. We relate some tidings of them unto thee (Muhammad). Their messengers verily came unto them with clear proofs (of Allah's Sovereignty), but they could not believe because they had before denied. Thus doth Allah print upon the hearts of disbelievers (that they hear not). 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 And Musa said: O Fir'awn! I am an apostle from the Lord of the worlds; 104 [Who is] obligated not to say about Allah except the truth. I have come to you with clear evidence from your Lord, so send with me the Children of Israel." 105 Said he, 'If thou hast brought a sign, produce it, if thou speakest truly.' 106 Then he flung down his staff and lo! it was a serpent manifest; 107 Then he uncovered his hand and it appeared sheer white to the onlookers. 108