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 are thankless, you and whoso is on earth, all together, yet assuredly God is All-sufficient, All-laudable.' 8 HAVE THE STORIES of those [deniers of the truth] who lived before you never yet come within your ken - [the stories of] the people of Noah, and of [the tribes of] 'Ad and Thamud, and of those who came after them? None knows them [now] save God. There came unto them their apostles with all evidence of the truth - but they covered their mouths with their hands and answered: "Behold, we refuse to regard as true the message with which you [claim to] have been entrusted; and behold, we are in grave doubt, amounting to suspicion, about [the meaning of] your call to us!" 9 ۞ Said the apostles sent unto them: "Can there be any doubt about [the existence and oneness of] God, the Originator of the heavens and the earth? It is He who calls unto you, so that He may forgive you [whatever is past] of your sins and grant you respite until a term [set by Him is fulfilled]." [But] they replied: "You are nothing but mortal men like ourselves! You want to turn us away from what our forefathers were wont to worship: well, then, bring us a clear proof [of your being God's message-bearers]!" 10 Their Messengers said to them, 'We are nothing but mortals, like you; but God is gracious unto whomsoever He will of His servants. It is not for us to bring you an authority save by the leave of God; and in God let the believers put all their trust. 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