Revelation 20:1

And I saw an angel descending from heaven, having the key of the abyss and a great chain in his hand.

Revelation 1:18

and the living, and I was dead, and behold, I am living forever and ever; and I have the keys of death and of hades.

Revelation 10:1

AND I saw another mighty angel come down from heaven, clothed with a cloud, and an iris was about his head, and his face was like the sun, and his feet like pillars of fire,

Luke 8:31

And he besought him not to command them to go into the abyss.

2 Peter 2:4

For if God spared not the angels that sinned, but plunging them into Tartarus delivered them up in chains to be kept in darkness till the judgment,

Jude 1:6

and the angels who kept not their own province, but left their habitation, he has kept under darkness in eternal chains, for the judgment of the great day;

Revelation 9:1-2

And the fifth angel sounded; and I saw a star fall from heaven to the earth, and there was given him the key of the pit of the abyss.

Revelation 18:1

After this I saw another angel come down from heaven, having great power, and the earth was lighted by 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
AND I saw another mighty angel come down from heaven, clothed with a cloud, and an iris was about his head, and his face was like the sun, and his feet like pillars of fire,
Revelation 18:1
After this I saw another angel come down from heaven, having great power, and the earth was lighted by his glory.

Having

Revelation 1:18
and the living, and I was dead, and behold, I am living forever and ever; and I have the keys of death and of hades.
Revelation 9:1
And the fifth angel sounded; and I saw a star fall from heaven to the earth, and there was given him the key of the pit of the abyss.
Luke 8:31
And he besought him not to command them to go into the abyss.

A great

2 Peter 2:4
For if God spared not the angels that sinned, but plunging them into Tartarus delivered them up in chains to be kept in darkness till the judgment,
Jude 1:6
and the angels who kept not their own province, but left their habitation, he has kept under darkness in eternal chains, for the judgment of the great day;

General references

Matthew 8:31
And, the demons besought him, saying, If you cast us out, send us into the herd of swine.
Matthew 12:29
Or how can one enter into the house of a strong man and plunder his goods, unless he first binds the strong man, and then he will plunder his house.
Mark 3:27
But no one can enter into the house of a strong man, and plunder his goods, unless he first binds the strong man, and then he will plunder his house.
Luke 11:22
but when a stronger man than he comes upon him, and overcomes him, he takes away all his arms in which he trusted, and distributes his spoils.