Revelation 9:1

And the fifth angel sounded, and I saw a star fallen out of the heaven to the earth, and there was given to him the key of the pit of the abyss.

Revelation 8:10

And the third angel sounded; and there fell out of the heaven a great star, burning as a torch, and it fell on the third part of the rivers, and upon the fountains of the waters.

Luke 8:31

And they were entreating Him, that He would not command them to go away into the abyss.

Revelation 1:18

and the Living One; and I was dead; and, behold, I am alive forevermore; and I have the keys of death and of Hades.

Revelation 9:2

And he opened the pit of the abyss; and there went up a smoke out of the pit, as the smoke of a great furnace; and the sun and the air were darkened by reason of the smoke of the pit.

Luke 10:18

And He said to them, "I was beholding Satan fallen as lightning out of the heavens.

Romans 10:7

or, who shall descend into the abyss? (that is, to bring Christ up from the dead)."

Revelation 17:8

The beast which you saw was, and is not, and is about to come up out of the abyss, and to go into perdition. And those who dwell on the earth shall wonder, whose names have not been written in the book of life from the founding of the world, when they behold the beast, that he was, and is not, and shall come.

Revelation 20:1

And I saw an angel coming down out of Heaven, having the key of the abyss, and a great chain upon his hand.

2 Thessalonians 2:3-8

Let no one deceive you in any manner; because that day will not come, unless the falling away come first, and the man of lawlessness be revealed??he son of perdition;

2 Timothy 3:1-5

But know this, that in the last days perilous times will come;

Revelation 1:20

the mystery of the seven stars which you saw in My right hand, and the seven golden candlesticks. The seven stars are the angels of seven assemblies; and the seven candlesticks are seven assemblies."

Revelation 8:2

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

Revelation 8:6-8

And the seven angels, who had the seven trumpets, prepared themselves to sound.

Revelation 8:12

And the fourth angel sounded; and the third part of the sun was smitten, and the third part of the moon, and the third part of the stars, that the third part of them might be darkened, and that the day might not shine for the third part of it, and the night in like manner.

Revelation 9:11-13

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

Revelation 11:14-15

The second woe departed; behold, the third woe comes quickly.

Revelation 20:10

And the Devil who deceived them was cast into the lake of fire and brimstone, where also the beast and the false prophet were cast; and they shall be tormented, day and night, forever and ever.

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 departed; behold, there are coming yet two woes hereafter!
Revelation 8:6
And the seven angels, who had the seven trumpets, prepared themselves to sound.
Revelation 11:14
The second woe departed; behold, the third woe comes quickly.

A star

Revelation 1:20
the mystery of the seven stars which you saw in My right hand, and the seven golden candlesticks. The seven stars are the angels of seven assemblies; and the seven candlesticks are seven assemblies."
Revelation 8:10
And the third angel sounded; and there fell out of the heaven a great star, burning as a torch, and it fell on the third part of the rivers, and upon the fountains of the waters.
Luke 10:18
And He said to them, "I was beholding Satan fallen as lightning out of the heavens.
2 Thessalonians 2:3
Let no one deceive you in any manner; because that day will not come, unless the falling away come first, and the man of lawlessness be revealed??he son of perdition;
2 Timothy 3:1
But know this, that in the last days perilous times will come;

To him

Revelation 1:18
and the Living One; and I was dead; and, behold, I am alive forevermore; and I have the keys of death and of Hades.
Revelation 20:1
And I saw an angel coming down out of Heaven, having the key of the abyss, and a great chain upon his hand.