A shattering cry, and he surged across the plain,
thundering loud as nine, ten thousand combat soldiers
shriek with Ares’ fury when massive armies clash – so huge
that voice the god of the earthquake let loose from his lungs,
planting enormous martial power in each Achaean’s heart
to urge the battle on, to fight and never flinch.

– Homer

The Iliad, Book 14, lines 181-186. Poseidon shouts encouragement to the Achaeans. An extended simile compares his cry to ten thousand combat soldiers shouting with the fury of the god of war Ares when huge armies clash.