Revelation 19:21

King James 3 - The Literal Traslation

And the rest were killed with the sword of the One sitting on the horse, the sword going forth from His mouth. And all the birds were filled from their flesh.

Cross References

Revelation 1:16

and having in His right hand seven stars; and a sharp, two-edged sword proceeding out of His mouth, and His face shining as the sun in its power.

Revelation 17:16

And the ten horns which you saw on the beast, these will hate the harlot, and will make her desolated and naked. And they will eat her flesh, and will burn her up with fire.