Revelation 20:1

Then I saw an angel coming down from heaven, holding in his hand the key to the bottomless pit and a great chain.

Revelation 1:18

and the living one. I died, and behold I am alive forevermore, and I have the keys of Death and Hades.

Revelation 10:1

Then I saw another mighty angel coming down from heaven, wrapped in a cloud, with a rainbow over his head, and his face was like the sun, and his legs like pillars of fire.

Luke 8:31

And they begged him not to command them to depart into the abyss.

2 Peter 2:4

For if God did not spare angels when they sinned, but cast them into hell and committed them to chains of gloomy darkness to be kept until the judgment;

Jude 1:6

And the angels who did not stay within their own position of authority, but left their proper dwelling, he has kept in eternal chains under gloomy darkness until the judgment of the great day--

Revelation 9:1-2

And the fifth angel blew his trumpet, and I saw a star fallen from heaven to earth, and he was given the key to the shaft of the bottomless pit.

Revelation 18:1

After this I saw another angel coming down from heaven, having great authority, and the earth was made bright with his glory.

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, wrapped in a cloud, with a rainbow over his head, and his face was like the sun, and his legs like pillars of fire.
Revelation 18:1
After this I saw another angel coming down from heaven, having great authority, and the earth was made bright with his glory.

Having

Revelation 1:18
and the living one. I died, and behold I am alive forevermore, and I have the keys of Death and Hades.
Revelation 9:1
And the fifth angel blew his trumpet, and I saw a star fallen from heaven to earth, and he was given the key to the shaft of the bottomless pit.
Luke 8:31
And they begged him not to command them to depart into the abyss.

A great

2 Peter 2:4
For if God did not spare angels when they sinned, but cast them into hell and committed them to chains of gloomy darkness to be kept until the judgment;
Jude 1:6
And the angels who did not stay within their own position of authority, but left their proper dwelling, he has kept in eternal chains under gloomy darkness until the judgment of the great day--

General references

Matthew 8:31
And the demons begged him, saying, "If you cast us out, send us away into the herd of pigs."
Matthew 12:29
Or how can someone enter a strong man's house and plunder his goods, unless he first binds the strong man? Then indeed he may plunder his house.
Mark 3:27
But no one can enter a strong man's house and plunder his goods, unless he first binds the strong man. Then indeed he may plunder his house.
Luke 11:22
but when one stronger than he attacks him and overcomes him, he takes away his armor in which he trusted and divides his spoil.

The Holy Bible, English Standard Version® copyright © 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.