40.81 . And He showeth you His tokens . Which , then , of the tokens of Allah do ye deny?

40.82 . Have they not travelled in the land to see the nature of the consequence for those before them? They were more numerous than these , and mightier in power and ( in the ) traces ( which they left behind them ) in the earth . But all that they used to earn availed them not .

40.83 . And when their messengers brought them clear proofs ( of Allah ' s Sovereignty ) they exulted in the knowledge they ( themselves ) possessed . And that which they were wont to mock befell them .

40.84 . Then , when they saw Our doom , they said : We believe in Allah only and reject ( all ) that we used to associate ( with Him ) .

40.85 . But their faith could not avail them when they saw Our doom . This is Allah ' s law which hath ever taken course for his Bondsmen . And then the disbelievers will be ruined .