Revelation 20:1
And I saw an angel coming down out of heaven, having the key of the great deep and a great chain in his hand.
Revelation 1:18
And I was dead, and see, I am living for ever, and I have the keys of death and of Hell.
Revelation 10:1
And I saw another strong angel coming down out of heaven, clothed with a cloud; and an arch of coloured light was round his head, and his face was like the sun, and his feet like pillars of fire;
Luke 8:31
And they made a request to him that he would not give them an order to go away into the deep.
2 Peter 2:4
For if God did not have pity for the angels who did evil, but sent them down into hell, to be kept in chains of eternal night till they were judged;
Jude 1:6
And the angels who did not keep to their kingdom but went out from the place which was theirs, he has put in eternal chains and in dark night till the great day of the judging.
Revelation 9:1-2
And at the sounding of the fifth angel I saw a star falling from heaven to the earth: and there was given to him the key of the great deep.
Revelation 18:1
After these things I saw another angel coming down out of heaven, having great authority; and the earth was bright with his glory.