Revelation 9:18-19

Amplified Bible, Classic Edition

¹⁸ A third of mankind was killed by these three plagues—by the fire and the smoke and the sulphur (brimstone) that poured from the mouths of the horses.

¹⁹ For the power of the horses to do harm is in their mouths and also in their tails. Their tails are like serpents, for they have heads, and it is by means of them that they wound people.