This includes also the present generation: their blasphemy, their insisting on the atheism, the enthusiasm about their religious leaders and their idolatry.
Therefore, you disbelievers beware of God's punishment!
And you believers beware also of God's dealing and don't be like the disbelievers or you will lose in the same way.
Quran 65: 8-11, which mean:
(8. Yet how many cities rebelled against the command of its Lord and of His messengers [: apostles], so We punished them [in the World] with a severe punishment [according to their rebellion], and chastised them [in the Next Life] with a dreadful chastisement [: of which souls dread.]
9. So they suffered the evil consequences of their ‘disbelief and deception’, and the end of their ‘disbelief and deception’ was complete loss [; for they lost their Next Life.]
10. God has prepared [for Doomsday] for them severe chastisement; –– then ward off God's [punishment], O men of understanding: You who believe! God has revealed to you an admonition [included in the Quran, which He revealed to His messenger Mohammed, who is …]
11. A messenger [of God] reciting to you the revelations of God, evidently indicating [that their source is from God]; to bring forth those who believe and do righteous [works] from [the depths of] darkness [of ignorance and disbelief] to the light [of knowledge and belief.])
For more explanation:
Here is also the recitation of these horrible ayat of the Quran