Revelation 12:3-4

And there appeared another sign in heaven; and behold, a great dragon, fiery-red, that had seven heads, and ten horns: and on his heads seven diadems.

Revelation 12:16-17

And the earth helped the woman; and the earth opened her mouth, and swallowed up the river that the dragon threw out of his mouth.

Revelation 13:2

And the beast that I saw was like a leopard, and his feet were as those of a bear, and his mouth was as the mouth of a lion. And the dragon gave him his power, and his throne, and great authority.

Revelation 13:4

And they worshiped the dragon, because he gave authority to the beast: and they worshiped 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 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 three unclean spirits, like frogs, 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.

Revelation 20:2

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

Treasury of Scripture Knowledge

Summary

Speak, and say, Thus saith the Lord GOD; Behold, I am against thee, Pharaoh king of Egypt, the great dragon that lieth in the midst of his rivers, which hath said, My river is mine own, and I have made it for myself.

Bible References

The great

Revelation 12:3
And there appeared another sign in heaven; and behold, a great dragon, fiery-red, that had seven heads, and ten horns: and on his heads seven diadems.
Revelation 13:2
And the beast that I saw was like a leopard, and his feet were as those of a bear, and his mouth was as the mouth of a lion. And the dragon gave him his power, and his throne, and great authority.
Revelation 16:13
And I saw three unclean spirits, like frogs, 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.
Revelation 20:2
And he laid hold of the dragon, that old serpent, which is the devil and Satan, and bound him for a thousand years,