Revelation 20:1
And I saw an angel come down from heaven, having the key of the bottomless pit, and a great chain in his hand.
Revelation 1:18
and am alive, and was dead. And behold I am alive for evermore, and have the keys of hell and of death.
Revelation 10:1
And I saw another mighty angel come down from heaven, clothed with a cloud, and the rainbow upon his head. And his face as it were the sun, and his feet as it were pillars of fire;
Luke 8:31
And they besought him, that he would not command them to go out into the deep.
2 Peter 2:4
For if God spared not the angels that sinned, but cast them down into hell, and delivered them in chains of darkness, to be kept unto judgement;
Jude 1:6
The angels also, which kept not their first estate, but left their own habitation, he hath reserved in everlasting chains under darkness unto the judgment of the great day:
Revelation 9:1-2
And the fifth angel blew, and I saw a star fall from heaven unto the earth. And to him was given the key of the bottomless pit.
Revelation 18:1
And after that I saw another angel come from heaven, having great power, and the earth was lightened with his brightness.