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 Has not the account reached you of those before you, of the people of Nuh and Ad and Samood, and those after them? None knows them but Allah. Their apostles come to them with clear arguments, but they thrust their hands into their mouths and said: Surely we deny that with which you are sent, and most surely we are in serious doubt as to that to which you invite 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 told them: "Indeed we are only human beings like yourselves, but Allah bestows His favour on those of His servants whom He wills. It does not lie in our power to produce any authority except by the leave of Allah. It is in Allah that the believers should put their trust. 11 And what reason have we that we should not rely on Allah? And He has indeed guided us in our ways; and certainly we would bear with patience your persecution of us; and on Allah should the reliant rely. 12