Revelation 9:15-19

So the four angels were released, who had been prepared for the right hour, day, month, and year, to kill a third of humanity. I heard the number of soldiers on horseback—it was twice ten thousand times ten thousand. And in my vision I saw the horses with riders wearing breastplates of fire and of sapphire and of sulfur. The horses had lions’ heads breathing out fire and smoke and sulfur. They killed a third of humanity by these three plagues—the fire, the smoke, and the sulfur that came from their mouths. For the lethal power of the horses was in their mouths and their tails, and their tails had snakes’ heads that inflict injuries.