And when he attained his full strength and became firm, We vouchsafed unto him wisdom and knowledge; and thus We reward the well-doers. 14 He entered the city unnoticed by its people, and there he encountered two men fighting with one another -- one of his own people and the other one of his enemies. The one who belonged to his own people cried out to him for help against his foe -- whereupon Moses struck him down with his fist, thereby causing his death. Moses said, "This is Satan's doing; he is an open foe, leading man astray." 15 He said: "My Lord! Verily, I have wronged myself, so forgive me." Then He forgave him. Verily, He is the Oft-Forgiving, the Most Merciful. 16 He said: my Lord! whereas Thou hast favoured me, I shall nevermore be a supporter of the culprits. 17 The next morning, when he was walking in the city, apprehensive, and watchful, and the man who had sought his help the day before cried out to him again for help. Moses said to him, "You are clearly a misguided man." 18 And when Moses decided to lay his violent hands on the man belonging to the enemy, he cried out: "Moses, do you intend to kill me as you killed a person yesterday?" You simply want to live in the land as a tyrant, and do not wish to set things right." 19 And a man came running from the remotest part of the city. He said: O Musa! surely the chiefs are consulting together to slay you, therefore depart (at once); surely I am of those who wish well to you. 20 So he left it, fearful and anticipating [apprehension]. He said, "My Lord, save me from the wrongdoing people." 21