Revelation 9:17-19

New American Standard Bible

¹⁷ And this is how I saw ^(A)in my vision the horses and those who sat on them: the riders had breastplates the color of fire, of hyacinth, and of ^[a](B)brimstone; and the heads of the horses are like the heads of lions; and ^(C)out of their mouths *came fire and smoke and ^[b](D)brimstone. ¹⁸ A ^(E)third of mankind was killed by these three plagues, by the ^(F)fire, the smoke, and the ^[c]brimstone which came out of their mouths. ¹⁹ For 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.