Revelation 20:1

Then I saw an angel coming down from heaven with the key to the abyss and a great chain in his hand.

Revelation 1:18

and the Living One. I was dead, but look—I am alive forever and ever, and I hold the keys of death and Hades.

Revelation 10:1

Then I saw another mighty angel coming down from heaven, surrounded by a cloud, with a rainbow over his head. His face was like the sun, his legs were like fiery pillars,

Luke 8:31

And they begged Him not to banish them to the abyss.

2 Peter 2:4

For if God didn’t spare the angels who sinned but threw them down into Tartarus and delivered them to be kept in chains of darkness until judgment;

Jude 1:6

and He has kept, with eternal chains in darkness for the judgment of the great day, the angels who did not keep their own position but deserted their proper dwelling.

Revelation 9:1-2

The fifth angel blew his trumpet, and I saw a star that had fallen from heaven to earth. The key to the shaft of the abyss was given to him.

Revelation 18:1

After this I saw another angel with great authority coming down from heaven, and the earth was illuminated by his splendor.

Treasury of Scripture Knowledge

Summary

And I saw an angel come down from heaven, having the key of the bottomless pit and a great chain in his hand.

Bible References

I saw

Revelation 10:1
Then I saw another mighty angel coming down from heaven, surrounded by a cloud, with a rainbow over his head. His face was like the sun, his legs were like fiery pillars,
Revelation 18:1
After this I saw another angel with great authority coming down from heaven, and the earth was illuminated by his splendor.

Having

Revelation 1:18
and the Living One. I was dead, but look—I am alive forever and ever, and I hold the keys of death and Hades.
Revelation 9:1
The fifth angel blew his trumpet, and I saw a star that had fallen from heaven to earth. The key to the shaft of the abyss was given to him.
Luke 8:31
And they begged Him not to banish them to the abyss.

A great

2 Peter 2:4
For if God didn’t spare the angels who sinned but threw them down into Tartarus and delivered them to be kept in chains of darkness until judgment;
Jude 1:6
and He has kept, with eternal chains in darkness for the judgment of the great day, the angels who did not keep their own position but deserted their proper dwelling.

General references

Matthew 8:31
“If You drive us out,” the demons begged Him, “send us into the herd of pigs.”
Matthew 12:29
How can someone enter a strong man’s house and steal his possessions unless he first ties up the strong man? Then he can rob his house.
Mark 3:27
“On the other hand, no one can enter a strong man’s house and rob his possessions unless he first ties up the strong man. Then he will rob his house.
Luke 11:22
But when one stronger than he attacks and overpowers him, he takes from him all his weapons he trusted in, and divides up his plunder.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.