Revelation 19:21

And the rest were killed with the sword that came from the mouth of him who sat on the horse, and all the birds were gorged with their flesh.

Revelation 1:16

he held in his right hand seven stars, out of his mouth went a sharp two-edged sword, and his face was like the sun shining in its strength.

Revelation 17:16

And the ten horns you saw, they and the beast will hate the harlot; they will make her desolate and naked, and will eat her flesh and burn her up with fire,

Revelation 19:11-15

Then I saw heaven opened, and behold, a white horse! He who sat on it is called Faithful and True, and in righteousness he judges and makes war.

Revelation 19:17-19

Then I saw an angel standing in the sun, and with a loud voice he cried to all the birds that fly in midheaven, "Come, gather for the great supper of God,

Treasury of Scripture Knowledge

Summary

And the remnant were slain with the sword of him that sat upon the horse, which sword proceeded out of his mouth: and all the fowls were filled with their flesh.

Bible References

The remnant

Revelation 19:11
Then I saw heaven opened, and behold, a white horse! He who sat on it is called Faithful and True, and in righteousness he judges and makes war.
Revelation 1:16
he held in his right hand seven stars, out of his mouth went a sharp two-edged sword, and his face was like the sun shining in its strength.

And all

Revelation 19:17
Then I saw an angel standing in the sun, and with a loud voice he cried to all the birds that fly in midheaven, "Come, gather for the great supper of God,
Revelation 17:16
And the ten horns you saw, they and the beast will hate the harlot; they will make her desolate and naked, and will eat her flesh and burn her up with fire,