Ezekiel 38:20

So that the fishes of the sea, and the fowls of the heaven, and the beasts of the field, and all creeping things that creep upon the earth, and all the men that are upon the face of the earth, shall shake at my presence, and the mountains shall be thrown down, and the steep places shall fall, and every wall shall fall to the ground.

So that the fish of the sea - disturbed by the fleets which I will bring.

And the fowls of the heaven - frightened at the sight of so many men: an ideal picture. All creatures of the earth "shall shake at my presence."

And the mountains - i:e., the fortresses on the mountains "shall be thrown down."

And the steep places shall fall - "steep places," literally, 'stairs' (); i:e., steep terraces for vines on the sides of hills, to prevent the earth being washed down by the rains.

Every wall - of towns.