Revelation 9:16-18

Darby Translation

¹⁶ and the number of the hosts of horse [was] twice ten thousand times ten thousand. I heard their number.

¹⁷ And thus I saw the horses in the vision, and those that sat upon them, having breastplates of fire and jacinth and brimstone; and the heads of the horses [were] as heads of lions, and out of their mouths goes out fire and smoke and brimstone.

¹⁸ By these three plagues were the third part of men killed, by the fire and the smoke and the brimstone which goes out of their mouths.