Revelation 9:17-19

Young's Literal Translation

¹⁷ And thus I saw the horses in the vision, and those sitting upon them, having breastplates of fire, and jacinth, and brimstone; and the heads of the horses [are] as heads of lions, and out of their mouths proceedeth fire, and smoke, and brimstone;

¹⁸ by these three were the third of men killed, from the fire, and from the smoke, and from the brimstone, that is proceeding out of their mouth,

¹⁹ for their authorities are in their mouth, and in their tails, for their tails [are] like serpents, having heads, and with them they do injure;