Revelation 2:16

Repent therefore; or else I will come to thee quickly, and will make war with them with the sword of my mouth.

Revelation 12:3-2

And another sign was seen in heaven; and behold, a great red dragon, having seven heads and ten horns, and on his heads seven diadems;

Revelation 13:4

And they worshipped the dragon, because he gave the authority to the beast; and they worshipped the beast, saying, Who is like to the beast, and who is able to make war with him?

Revelation 13:11

And I saw another beast coming up out of the earth; and he had two horns like a lamb, and he spoke as a dragon.

Revelation 16:13

And I saw come out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet, three unclean spirits like frogs;

Revelation 17:1

And there came one of the seven angels who had the seven vials, and talked with me, saying, Come hither; I will show thee the judgment of the great harlot that sitteth upon the many waters;

Revelation 17:15

And he saith to me, The waters which thou sawest, where the harlot sitteth, are peoples, and multitudes, and nations, and tongues.

Revelation 19:21

And the rest were slain with the sword of him who sat upon the horse, the sword which proceeded out of his mouth; and all the birds were glutted with their flesh.

Revelation 20:2

And he laid hold of the dragon, the old serpent, which is the Devil and Satan, and bound him a thousand years,

Treasury of Scripture Knowledge

Summary

In that day the LORD with his sore and great and strong sword shall punish leviathan the piercing serpent, even leviathan that crooked serpent; and he shall slay the dragon that is in the sea.

General references

Bible References

With his

Revelation 2:16
Repent therefore; or else I will come to thee quickly, and will make war with them with the sword of my mouth.
Revelation 19:21
And the rest were slain with the sword of him who sat upon the horse, the sword which proceeded out of his mouth; and all the birds were glutted with their flesh.

In the sea

Revelation 13:1
And I stood upon the sand of the sea. And I saw a beast coming up out of the sea, having ten horns and seven heads, and upon his horns ten diadems, and upon his heads names of blasphemy.
Revelation 17:1
And there came one of the seven angels who had the seven vials, and talked with me, saying, Come hither; I will show thee the judgment of the great harlot that sitteth upon the many waters;

General references

Mark 3:27
Moreover, no one can enter into a strong mans house, and plunder his goods, unless he first bind the strong man; and then he will plunder his house.
Luke 11:22
but when one stronger than he cometh upon him and overcometh him, he taketh from him his whole armor wherein he trusted, and divideth his spoils.