Revelation 20:1

And I saw a messenger coming down out of the heaven, having the key of the abyss, and a great chain over his hand,

Revelation 1:18

and he who is living, and I did become dead, and, lo, I am living to the ages of the ages. Amen! and I have the keys of the hades and of the death.

Revelation 10:1

And I saw another strong messenger coming down out of the heaven, arrayed with a cloud, and a rainbow upon the head, and his face as the sun, and his feet as pillars of fire,

Luke 8:31

and he was calling on him, that he may not command them to go away to the abyss,

2 Peter 2:4

For if God messengers who sinned did not spare, but with chains of thick gloom, having cast them down to Tartarus, did deliver them to judgment, having been reserved,

Jude 1:6

messengers also, those who did not keep their own principality, but did leave their proper dwelling, to a judgment of a great day, in bonds everlasting, under darkness He hath kept,

Revelation 9:1-2

And the fifth messenger did sound, and I saw a star out of the heaven having fallen to the earth, and there was given to it the key of the pit of the abyss,

Revelation 18:1

And after these things I saw another messenger coming down out of the heaven, having great authority, and the earth was lightened from 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 strong messenger coming down out of the heaven, arrayed with a cloud, and a rainbow upon the head, and his face as the sun, and his feet as pillars of fire,
Revelation 18:1
And after these things I saw another messenger coming down out of the heaven, having great authority, and the earth was lightened from his glory,

Having

Revelation 1:18
and he who is living, and I did become dead, and, lo, I am living to the ages of the ages. Amen! and I have the keys of the hades and of the death.
Revelation 9:1
And the fifth messenger did sound, and I saw a star out of the heaven having fallen to the earth, and there was given to it the key of the pit of the abyss,
Luke 8:31
and he was calling on him, that he may not command them to go away to the abyss,

A great

2 Peter 2:4
For if God messengers who sinned did not spare, but with chains of thick gloom, having cast them down to Tartarus, did deliver them to judgment, having been reserved,
Jude 1:6
messengers also, those who did not keep their own principality, but did leave their proper dwelling, to a judgment of a great day, in bonds everlasting, under darkness He hath kept,

General references

Matthew 8:31
and the demons were calling on him, saying, 'If thou dost cast us forth, permit us to go away to the herd of the swine;'
Matthew 12:29
'Or how is one able to go into the house of the strong man, and to plunder his goods, if first he may not bind the strong man? and then his house he will plunder.
Mark 3:27
No one is able the vessels of the strong man -- having entered into his house -- to spoil, if first he may not bind the strong man, and then his house he will spoil.
Luke 11:22
but when the stronger than he, having come upon him, may overcome him, his whole-armour he doth take away in which he had trusted, and his spoils he distributeth;