And all in an onrush dark as autumn days
when the whole earth flattens black beneath a gale,
when Zeus flings down his pelting, punishing rains –
up in arms, furious, storming against those men
who brawl in the courts and render crooked judgments,
men who throw all rights to the winds with no regard
for the vengeful eyes of the gods – so all their rivers
crest into flood spate, ravines overflowing cut the hilltops
off into lonely islands, the roaring flood tide rolling down
to the storm-torn sea, headlong down from the foothills
washes away the good plowed work of men –
Rampaging so,
the gasping Trojan war-teams hurtled on.

– Homer

The Iliad, Book 16, lines 455-466. An epic simile describes the panic of the Trojan war horses as the Achaeans charge. Homer in one of his wonderful extended similes likens this to an angry Zeus sending down punishing rains and floods on wrongdoers who have no regard for the gods.