Revelation 9:13-19

¹³Then the sixth angel sounded, and I heard a voice from the four horns of the golden altar which is before God, ¹⁴saying to the sixth angel who had the trumpet, “Release the four angels who are bound at the great river Euphrates.” ¹⁵And the four angels, who had been prepared for the hour and day and month and year, were released, so that they would kill a third of mankind. ¹⁶The number of the armies of the horsemen was two hundred million; I heard the number of them. ¹⁷And this is how I saw in my vision the horses and those who sat on them: the riders had breastplates the color of fire, of hyacinth, and of brimstone; and the heads of the horses are like the heads of lions; and out of their mouths *came fire and smoke and brimstone. ¹⁸A third of mankind was killed by these three plagues, by the fire, the smoke, and the brimstone which came out of their mouths. ¹⁹For the power of the horses is in their mouths and in their tails; for their tails are like serpents and have heads, and with them they do harm.