¹⁷ And thus I saw the horses in a vision, and those who sat on them, having fiery breastplates of a jacinth colour, and of crystal sulphur. And the heads of the horses were like the heads of lions. And out of their mouths went forth fire and smoke and brimstone. ¹⁸ And by these three the third part of mankind was killed; that is to say, by the fire, smoke, and brimstone that proceeded out of their mouths. ¹⁹ For their power was in their mouths and in their tails. For their tails were like serpents, and had heads, and with them they did harm.