Revelation 9:15-17

American Standard Version

¹⁵ And the four angels were loosed, that had been prepared for the hour and day and month and year, that they should kill the third part of men. ¹⁶ And the number of the armies of the horsemen was twice ten thousand times ten thousand: I heard the number of them. ¹⁷ And thus I saw the horses in the vision, and them that sat on them, having breastplates as of fire and of hyacinth and of brimstone: and the heads of the horses are as the heads of lions; and out of their mouths proceedeth fire and smoke and brimstone.