Revelation 19:21

But the rest were killed with the sword that came from the mouth of the Rider on the horse. And the birds all fed ravenously upon their flesh.

Revelation 1:16

In His right hand He held seven stars, and a sharp, two-edged sword was seen coming from His mouth; and His glance resembled the sun when it is shining with its full strength.

Revelation 17:16

And the ten horns that you have seen--and the Wild Beast--these will hate the Harlot, and they will cause her to be laid waste and will strip her bare. They will eat her flesh, and burn her up with fire.

Revelation 19:11-15

Then I saw a door open in Heaven, and a white horse appeared. Its rider was named "Faithful and True" --being One who in righteousness acts as Judge, and makes war.

Revelation 19:17-19

And I saw a single angel standing in the full light of the sun, who cried in a loud voice to all the birds that flew across the sky, "Come and be present at God's great supper,

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 a door open in Heaven, and a white horse appeared. Its rider was named "Faithful and True" --being One who in righteousness acts as Judge, and makes war.
Revelation 1:16
In His right hand He held seven stars, and a sharp, two-edged sword was seen coming from His mouth; and His glance resembled the sun when it is shining with its full strength.

And all

Revelation 19:17
And I saw a single angel standing in the full light of the sun, who cried in a loud voice to all the birds that flew across the sky, "Come and be present at God's great supper,
Revelation 17:16
And the ten horns that you have seen--and the Wild Beast--these will hate the Harlot, and they will cause her to be laid waste and will strip her bare. They will eat her flesh, and burn her up with fire.