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 there not reached you the news of those before you - the people of Noah and 'Aad and Thamud and those after them? No one knows them but Allah. Their messengers brought them clear proofs, but they returned their hands to their mouths and said, "Indeed, we disbelieve in that with which you have been sent, and indeed we are, about that to which you invite us, in disquieting doubt." 9 ۞ Their Messengers said: "Can there be any doubt about Allah, the Creator of the heavens and the earth? He invites you that He may forgive you your sins and grant you respite till an appointed term." They replied: "You are only a human being like ourselves. You seek to prevent us from serving those whom our forefathers have been serving all along. If that is so, produce a clear authority for it." 10 The Messengers replied, "We are certainly mere mortals like you, but God bestows His favors on whichever of His servants He wants. We can not bring you authority without the permission of God. The faithful should trust in God alone. 11 And why should we not put our trust in God, seeing that He has guided us in our ways? We will surely endure patiently, whatever you hurt us; and in God let all put their trust who put their trust.' 12