Revelation 9:1

The fifth angel blew his trumpet; and I saw a Star which had fallen from Heaven to the earth; and to him was given the key of the depths of the bottomless pit,

Revelation 8:10

The third angel blew his trumpet; and there fell from Heaven a great star, which was on fire like a torch. It fell upon a third part of the rivers and upon the springs of water.

Luke 8:31

and they besought Him not to command them to be gone into the Bottomless Pit.

Revelation 1:18

I died; but I am now alive until the Ages of the Ages, and I have the keys of the gates of Death and of Hades!

Revelation 9:2

and he opened the depths of the bottomless pit. And smoke came up out of the pit resembling the smoke of a vast furnace, so that the sun was darkened, and the air also, by reason of the smoke of the pit.

Luke 10:18

"I saw Satan fall like a lightning-flash out of Heaven," He replied.

Romans 10:7

"nor 'Who shall go down into the abyss?'" --that is, to bring Christ up again from the grave.

Revelation 17:8

"The Wild Beast which you have seen was, and is not, and yet is destined to re-ascend, before long, out of the bottomless pit and go his way into perdition. And the inhabitants of the earth will be filled with amazement--all whose names are not in the Book of Life, having been recorded there ever since the creation of the world--when they see the Wild Beast: because he was, and is not, and yet is to come.

Revelation 20:1

Then I saw an angel coming down from Heaven, having the key of the bottomless pit, and upon his arm he carried a great chain.

2 Thessalonians 2:3-8

Let no one in any way deceive you, for that day cannot come without the coming of the apostasy first, and the appearing of the man of sin, the son of perdition, who sets himself against,

2 Timothy 3:1-5

But of this be assured: in the last days grievous times will set in.

Revelation 1:20

the secret meaning of the seven stars which you have seen in My right hand, and of the seven lampstands of gold. The seven stars are the ministers of the seven Churches, and the seven lampstands are the seven Churches.

Revelation 8:2

Then I saw the seven angels who are in the presence of God, and seven trumpets were given to them.

Revelation 8:6-8

Then the seven angels who had the seven trumpets made preparations for blowing them.

Revelation 8:12

Then the fourth angel blew his trumpet; and a curse fell upon a third part of the sun, a third part of the moon, and a third part of the stars, so that a third part of them were darkened and for a third of the day, and also of the night, there was no light.

Revelation 9:11-13

The locusts had a king over them--the angel of the bottomless pit, whose name in Hebrew is 'Abaddon,' while in the Greek he is called 'Apollyon.'

Revelation 11:14-15

The second Woe is past; the third Woe will soon be here.

Revelation 20:10

and the Devil, who had been leading them astray, was thrown into the Lake of fire and sulphur where the Wild Beast and the false Prophet were, and day and night they will suffer torture until the Ages of the Ages.

Treasury of Scripture Knowledge

Summary

And the fifth angel sounded, and I saw a star fall from heaven unto the earth: and to him was given the key of the bottomless pit.

Bible References

The fifth

Revelation 9:12
The first woe is past; two other woes have still to come.
Revelation 8:6
Then the seven angels who had the seven trumpets made preparations for blowing them.
Revelation 11:14
The second Woe is past; the third Woe will soon be here.

A star

Revelation 1:20
the secret meaning of the seven stars which you have seen in My right hand, and of the seven lampstands of gold. The seven stars are the ministers of the seven Churches, and the seven lampstands are the seven Churches.
Revelation 8:10
The third angel blew his trumpet; and there fell from Heaven a great star, which was on fire like a torch. It fell upon a third part of the rivers and upon the springs of water.
Luke 10:18
"I saw Satan fall like a lightning-flash out of Heaven," He replied.
2 Thessalonians 2:3
Let no one in any way deceive you, for that day cannot come without the coming of the apostasy first, and the appearing of the man of sin, the son of perdition, who sets himself against,
2 Timothy 3:1
But of this be assured: in the last days grievous times will set in.

To him

Revelation 1:18
I died; but I am now alive until the Ages of the Ages, and I have the keys of the gates of Death and of Hades!
Revelation 20:1
Then I saw an angel coming down from Heaven, having the key of the bottomless pit, and upon his arm he carried a great chain.