Has it, then, not become obvious unto those who have inherited the earth in the wake of former generations that, if We so willed, We could smite them [too] by means of their sins, sealing their hearts so that they cannot hear [the truth]? 100 To those [earlier] communities - some of whose stories We relate to you - there had indeed come Messengers with clear proofs, but they would not believe what they had once rejected as false. Thus it is that Allah seals the hearts of those who deny the truth. 101 We did not find many of them faithful to their promises, and found many of them disobedient. 102 Then after them, We sent Moosa with our signs to Firaun and his court members, but they did injustice to those signs; therefore see what sort of fate befell the mischievous! 103 And Moses said: "O Pharaoh! Verily, I am an apostle from the Sustainer of all 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 [Fir'aun (Pharaoh)] said: "If you have come with a sign, show it forth, - if you are one of those who tell the truth." 106 Thereupon Moses threw his rod, and suddenly it was a veritable serpent. 107 Then he uncovered his hand and it appeared sheer white to the onlookers. 108