Thematic Bible: The army of horsemen

And the number of the armies of the cavalry was two myriads of myriads: I heard the number of them. And thus I saw the horses in the vision, and those sitting on them, having breastplates as of fire, and of hyacinth, and of brimstone: and the heads of the horses were as of the heads of lions; and out of their mouths proceeds fire and smoke and brimstone. And from these three plagues the third of the men were slain, from the fire, and from the smoke, and from the brimstone, coming out of their mouth. read more.
For the power of the horses is in their mouth, and in their tails: for their tails are like serpents, having heads, and with them they do hurt.