Revelation 9:17-19

New Revised Standard Version Catholic Edition

¹⁷ And this was how I saw the horses in my vision: the riders wore breastplates the color of fire and of sapphire^[a] and of sulfur; the heads of the horses were like lions’ heads, and fire and smoke and sulfur came out of their mouths. ¹⁸ By these three plagues a third of humankind was killed, by the fire and smoke and sulfur coming out of their mouths. ¹⁹ For the power of the horses is in their mouths and in their tails; their tails are like serpents, having heads; and with them they inflict harm.