And [remember] when your Lord proclaimed, 'If you are grateful, I will surely increase you [in favor]; but if you deny, indeed, My punishment is severe.' " 7 Moses told his people, "If you and everyone on the earth turn to disbelief, know that God is Self-sufficient and Praiseworthy." 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 ۞ 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 Their apostles answered them: "True, we are nothing but mortal men like yourselves: but God bestows His favour upon whomever He wills of His servants. Withal, it is not within our power to bring you a proof [of our mission,] unless it be by God's leave - and [so] it is in God that all believers must place their trust. 11 Why should we not trust in God when He has shown us the right way? We shall exercise patience against the troubles with which you afflict us. Whoever needs a trustee should trust in God." 12