Revelation 2:16

Change your minds therefore; otherwise I will come to you quickly, and fight with them with the sword of my mouth.

Revelation 12:3-2

And there appeared another symbol in heaven, and behold, a great fiery dragon, having seven heads and ten horns and upon his heads seven diadems,

Revelation 13:4

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

Revelation 13:11

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

Revelation 16:13

And I saw three impure spirits like frogs [proceed] from the mouth of the dragon and from the mouth of the beast and from the mouth of the false prophet;??14 for [these] are spirits of demons that perform miracles, that go to the kings of all the world, to assemble them for the battle of that great day of God Almighty.

Revelation 17:1

AND one of the seven angels having the seven bowls came and spoke to me, saying, Come, I will show you the judgment of the great harlot who sits on many waters,

Revelation 17:15

And he said to me, The waters which you saw, where the harlot sits, are peoples and multitudes and nations and tongues.

Revelation 19:21

And the rest were killed with the sword of him that sits on the horse, which proceeded out of his mouth, and all the birds were filled with their flesh.

Revelation 20:2

And he took the dragon, which is the old serpent, who 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
Change your minds therefore; otherwise I will come to you quickly, and fight with them with the sword of my mouth.
Revelation 19:21
And the rest were killed with the sword of him that sits on the horse, which proceeded out of his mouth, and all the birds were filled with their flesh.

In the sea

Revelation 13:1
And I stood on the sand of the sea. And I saw a beast come 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 one of the seven angels having the seven bowls came and spoke to me, saying, Come, I will show you the judgment of the great harlot who sits on many waters,

General references

Mark 3:27
But no one can enter into the house of a strong man, and plunder his goods, unless he first binds the strong man, and then he will plunder his house.
Luke 11:22
but when a stronger man than he comes upon him, and overcomes him, he takes away all his arms in which he trusted, and distributes his spoils.