Revelation 20:1

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

Revelation 1:18

yea, the ever-living One. I once was dead, but now I live forever and ever. I carry the keys of death and the underworld.

Revelation 10:1

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

Luke 8:31

Then they continued to beg Him not to order them to go off to the bottomless pit.

2 Peter 2:4

For if God did not spare angels when they sinned, but hurled them down to Tartarus and committed them to dark dungeons to await their doom,

Jude 1:6

And angels, who did not preserve their original rank but left their proper home, He has kept in everlasting chains under darkness, for the day of judgment,

Revelation 9:1-2

Then the fifth angel blew his trumpet, and I saw a star that had fallen from the sky upon the earth. To this angel the key to the pit of the abyss was given,

Revelation 18:1

After this I saw another angel coming down from heaven. He had great authority and the earth was lighted up with 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. He was clothed in a cloud, with a rainbow over his head; his face was like the sun, his legs were like pillars of fire,
Revelation 18:1
After this I saw another angel coming down from heaven. He had great authority and the earth was lighted up with his splendor.

Having

Revelation 1:18
yea, the ever-living One. I once was dead, but now I live forever and ever. I carry the keys of death and the underworld.
Revelation 9:1
Then the fifth angel blew his trumpet, and I saw a star that had fallen from the sky upon the earth. To this angel the key to the pit of the abyss was given,
Luke 8:31
Then they continued to beg Him not to order them to go off to the bottomless pit.

A great

2 Peter 2:4
For if God did not spare angels when they sinned, but hurled them down to Tartarus and committed them to dark dungeons to await their doom,
Jude 1:6
And angels, who did not preserve their original rank but left their proper home, He has kept in everlasting chains under darkness, for the day of judgment,

General references

Matthew 8:31
And the demons kept begging Him and saying, "If you are going to drive us out, send us into the drove of hogs."
Matthew 12:29
Or, how can anyone get into a giant's house and carry off his goods, unless he first binds the giant? After that he can make a clean sweep of his house.
Mark 3:27
But no one can get into a giant's house and carry off his goods, unless he first binds the giant; after that he can make a clean sweep of his house.
Luke 11:22
But when a man stronger than he attacks him and overcomes him, he strips him of all his arms on which he relied, and distributes his goods as spoils.