Is it not a lesson for the successors of the past generations that had We wanted, We could have punished them for their sins, sealed their hearts and deprived them of hearing? 100 (Muhammad), such were the stories of the people who lived in (different) towns in the past. We had sent Our Messengers to them with (certain) miracles but the people still did not believe in what they had rejected before. Such is how God seals the hearts of the unbelievers. 101 We found most of them untrue to their covenants, indeed We found most of them to be defiant. 102 So We sent Moses with miracles after (these apostles) to the Pharaoh and his nobles, but they behaved with them high-handedly. See then the end of the authors of evil. 103 And Moses said, "O Pharaoh, I am a messenger from the Lord of the worlds 104 duty-bound to say nothing about God but the truth, and I have brought you a clear sign from your Lord. Let the Children of Israel go with me." 105 He said: If you have come with a sign, then bring it, if you are of the truthful ones. 106 He threw down his staff, and it was clearly a serpent. 107 and he drew forth his hand, and lo! it appeared [shining] white to the beholders. 108