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 Musa said: if ye disbelive, ye and all those who are on the earth - then verily Allah is Self-Sufficient, Praiseworthy. 8 Hath not the history of those before you reached you: the folk of Noah, and (the tribes of) A'ad and Thamud, and those after them? None save Allah knoweth them. Their messengers came unto them with clear proofs, but they thrust their hands into their mouths, and said: Lo! we disbelieve in that wherewith ye have been sent, and lo! we are in grave doubt concerning that to which ye call 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 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 Allah when it is indeed He Who has guided us to the ways of our life? We shall surely continue to remain steadfast in face of your persecution. All those who have to put trust, should put their trust only in Allah." 12