Revelation 20:1

I saw an angel coming down out of heaven, having the key of the abyss and a great chain in his hand.

Revelation 1:18

and the Living one. I was dead, and behold, I am alive forevermore. Amen. I have the keys of Death and of Hades.

Revelation 10:1

I saw a mighty angel coming down out of the sky, clothed with a cloud. A rainbow was on his head. His face was like the sun, and his feet like pillars of fire.

Luke 8:31

They begged him that he would not command them to go into the abyss.

2 Peter 2:4

For if God didn't spare angels when they sinned, but cast them down to Tartarus, and committed them to pits of darkness, to be reserved for judgment;

Jude 1:6

Angels who didn't keep their first domain, but deserted their own dwelling place, he has kept in everlasting bonds under darkness for the judgment of the great day.

Revelation 9:1-2

The fifth angel sounded, and I saw a star from the sky which had fallen to the earth. The key to the pit of the abyss was given to him.

Revelation 18:1

After these things, I saw another angel coming down out of the sky, having great authority. The earth was illuminated 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
I saw a mighty angel coming down out of the sky, clothed with a cloud. A rainbow was on his head. His face was like the sun, and his feet like pillars of fire.
Revelation 18:1
After these things, I saw another angel coming down out of the sky, having great authority. The earth was illuminated with his glory.

Having

Revelation 1:18
and the Living one. I was dead, and behold, I am alive forevermore. Amen. I have the keys of Death and of Hades.
Revelation 9:1
The fifth angel sounded, and I saw a star from the sky which had fallen to the earth. The key to the pit of the abyss was given to him.
Luke 8:31
They begged him that he would not command them to go into the abyss.

A great

2 Peter 2:4
For if God didn't spare angels when they sinned, but cast them down to Tartarus, and committed them to pits of darkness, to be reserved for judgment;
Jude 1:6
Angels who didn't keep their first domain, but deserted their own dwelling place, he has kept in everlasting bonds under darkness for the judgment of the great day.

General references

Matthew 8:31
The demons begged him, saying, "If you cast us out, permit us to go away into the herd of pigs."
Matthew 12:29
Or how can one enter into the house of the strong man, and plunder his goods, unless he first bind the strong man? Then he will plunder his house.
Mark 3:27
But no one can enter into the house of the strong man to plunder, unless he first binds the strong man; and then he will plunder his house.
Luke 11:22
But when someone stronger attacks him and overcomes him, he takes from him his whole armor in which he trusted, and divides his spoils.