Revelation 9:1

And the fifth angel sounded; and I saw a star fall from 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 from heaven a great star, that burned as a lamp; and it fell upon the third part of the rivers, and upon the fountains of waters.

Luke 8:31

And they be sought him, that he would not command them to -go away into the abyss.

Revelation 1:18

and I am he that lives; and I was dead, and be hold, I am alive from age to age: and I have the keys of hades and of death.

Revelation 9:2

and he opened the pit of the abyss; and there arose a smoke out of the pit, like the smoke of a great furnace; and the sun and the air were darkened by the smoke of the pit.

Luke 10:18

And he said to them: I saw Satan, like lightning from heaven, falling.

Romans 10:7

or, Who shall descend into the abyss? that is, to bring Christ again from the dead.

Revelation 17:8

The beast that you saw, was, and is not, and will come out of the abyss, and go to perdition; and those who dwell on the earth, whose names were not written in the book of life from the foundation of the world, will wonder, when they see the beast that was, and is not, though he is yet present.

Revelation 20:1

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

2 Thessalonians 2:3-8

Let no one deceive you by any means; for that day will not come, unless the apostasy come first, and the man of sin be revealed, the son of perdition,

2 Timothy 3:1-5

But know this, that in the last days trying 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 the seven churches; and the seven candle sticks are the seven churches.

Revelation 8:2

And I saw the seven angels that stood before God, and seven trumpets were given to them.

Revelation 8:6-8

And the seven angels that had the seven trumpets prepared themselves to sound.

Revelation 8:12

And the fourth angel sounded; and the third part of the sun, and the third part of the moon, and the third part of the stars was smitten, that the third part 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

And they had over them a king, the angel of the abyss: his name, in Hebrew, is Abaddon, and, in Greek, he has the name Apollyon.

Revelation 11:14-15

The second woe is past: behold, the third woe comes quickly.

Revelation 20:10

And the devil who deceived them was thrown into the lake of fire and brimstone, where the beast and the false prophet are: and they shall be tormented day and night from age to age.

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: behold, there are coming, after this, two woes more.
Revelation 8:6
And the seven angels that had the seven trumpets prepared themselves to sound.
Revelation 11:14
The second woe is past: 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 the seven churches; and the seven candle sticks are the seven churches.
Revelation 8:10
And the third angel sounded; and there fell from heaven a great star, that burned as a lamp; and it fell upon the third part of the rivers, and upon the fountains of waters.
Luke 10:18
And he said to them: I saw Satan, like lightning from heaven, falling.
2 Thessalonians 2:3
Let no one deceive you by any means; for that day will not come, unless the apostasy come first, and the man of sin be revealed, the son of perdition,
2 Timothy 3:1
But know this, that in the last days trying times will come.

To him

Revelation 1:18
and I am he that lives; and I was dead, and be hold, I am alive from age to age: and I have the keys of hades and of death.
Revelation 20:1
And I saw an angel come down from heaven, having the key of the abyss, and a great chain in his hand.