فَجَعَلْنَاهَا نَكَالًا لِّمَا بَيْنَ يَدَيْهَا وَمَا خَلْفَهَا وَمَوْعِظَةً لِّلْمُتَّقِينَ

So We made it an exemplary punishment for the present and the succeeding [generations], and an advice to the Godwary.