Revelation 9:1

“How you have fallen from heaven, O star of the morning, son of the dawn! You have been cut down to the earth, You who have weakened the nations!

And they were pleading with Him not to command them to go away into the abyss.

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

and the stars of the sky fell to the earth, as a fig tree casts its unripe figs when shaken by a great wind.

Then I saw the seven angels who stand before God, and seven trumpets were given to them.

And the third angel sounded, and a great star fell from heaven, burning like a torch, and it fell on a third of the rivers and on the springs of waters.

They have as king over them, the angel of the abyss. His name in Hebrew is Abaddon, and in the Greek he has the name Apollyon.

And when they have finished their witness, the beast that comes up out of the abyss will make war with them and overcome them and kill them.

“The beast that you saw was, and is not, and is about to come up out of the abyss and go to destruction. And those who dwell on the earth, whose name has not been written in the book of life from the foundation of the world, will wonder when they see the beast, that he was and is not and will come.

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