And remember! your Lord caused to be declared (publicly): "If ye are grateful, I will add more (favours) unto you; But if ye show ingratitude, truly My punishment is terrible indeed." 7 And Moses said: 'If you and all mankind are thankless, He is surely Rich, Praised' 8 Has not the story reached you, (O people!), of those who (went) before you? - of the people of Noah, and 'Ad, and Thamud? - And of those who (came) after them? None knows them but Allah. To them came messengers with Clear (Signs); but they put their hands up to their mouths, and said: "We do deny (the mission) on which ye have been sent, and we are really in suspicious (disquieting) doubt as to that to which ye invite us." 9 ۞ The Messengers asked them, "Could there be any doubt about the existence of God who has created the heavens and the earth? He calls you to Himself to forgive your sins. He gives you respite only until the appointed time." They said, "You are mere mortals like us. What you want is to prevent us from worshipping that which our fathers worshipped. Show us clear proof (if what you say is true)." 10 Their messengers said to them, "We are only men like you, but Allah confers favor upon whom He wills of His servants. It has never been for us to bring you evidence except by permission of Allah. And upon Allah let the believers rely. 11 And how could we not place our trust in God, seeing that it is He who has shown us the path which we are to follow? "Hence, we shall certainly bear with patience whatever hurt you may do us: for, all who have trust [in His existence] must place their trust in God [alone]!" 12