Revelation 9:15-17

Darby Translation

¹⁵ And the four angels were loosed, who are prepared for the hour and day and month and year, that they might slay the third part of men;

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.