Revelation 11:7

When they have finished their testimony, the beast that comes up from the abyss will make war with them, and overcome them and kill them.

Revelation 13:7

Also it was given power to make war on the saints and to conquer them. And authority was given it over every tribe and people and tongue and nation,

Revelation 13:11

Then I saw another beast coming up out of the earth; and he had two horns like a lamb and he spoke like a dragon.

Luke 13:32

And he said to them, "Go and tell that fox, 'Behold, I cast out demons and perform cures today and tomorrow, and the third day I finish my course.'

John 17:4

I have glorified you on the earth, having finished the work which you have given me to do.

John 19:30

So when Jesus had received the vinegar, he said, "It is finished!" And he bowed his head and gave up his spirit.

Acts 20:24

But I do not consider my life of any account nor as precious to myself, if only I may finish my course and the ministry which I received from the Lord Jesus, to testify to the gospel of the grace of God.

2 Thessalonians 2:8-9

And then the lawless one will be revealed, whom the Lord Jesus will slay with the breath of his mouth and destroy by the splendor of his coming.

2 Timothy 4:7

I have fought the good fight, I have finished the race, I have kept the faith.

Revelation 9:1-2

And the fifth angel sounded his trumpet, and I saw a star which had fallen from heaven to earth; and he was given the key of the shaft of the bottomless pit.

Revelation 11:3

And I will grant power to my two witnesses, and they will prophesy for twelve hundred and sixty days, clothed in sackcloth."

Revelation 13:1-4

And the dragon stood on the shore of the sea. And I saw a beast coming out of the sea. He had ten horns and seven heads, with ten diadems on his horns, and on his heads were blasphemous names.

Revelation 13:16-17

And he causes all, both small and great, rich and poor, free and slave, to be given a mark on their right hand or the forehead,

Revelation 17:6-8

And I saw the woman drunk with the blood of the saints, and with the blood of the witnesses of Jesus. When I saw her, I wondered greatly.

Revelation 19:19-20

And I saw the beast and the kings of the earth with their armies gathered to make war against him who sits on the horse and against his army.

Treasury of Scripture Knowledge

Summary

And when they shall have finished their testimony, the beast that ascendeth out of the bottomless pit shall make war against them, and shall overcome them, and kill them.

Bible References

When

Revelation 11:3
And I will grant power to my two witnesses, and they will prophesy for twelve hundred and sixty days, clothed in sackcloth."
Luke 13:32
And he said to them, "Go and tell that fox, 'Behold, I cast out demons and perform cures today and tomorrow, and the third day I finish my course.'
John 17:4
I have glorified you on the earth, having finished the work which you have given me to do.
John 19:30
So when Jesus had received the vinegar, he said, "It is finished!" And he bowed his head and gave up his spirit.
Acts 20:24
But I do not consider my life of any account nor as precious to myself, if only I may finish my course and the ministry which I received from the Lord Jesus, to testify to the gospel of the grace of God.
2 Timothy 4:7
I have fought the good fight, I have finished the race, I have kept the faith.

The beast

Revelation 13:1
And the dragon stood on the shore of the sea. And I saw a beast coming out of the sea. He had ten horns and seven heads, with ten diadems on his horns, and on his heads were blasphemous names.
Revelation 17:6
And I saw the woman drunk with the blood of the saints, and with the blood of the witnesses of Jesus. When I saw her, I wondered greatly.
Revelation 19:19
And I saw the beast and the kings of the earth with their armies gathered to make war against him who sits on the horse and against his army.
2 Thessalonians 2:8
And then the lawless one will be revealed, whom the Lord Jesus will slay with the breath of his mouth and destroy by the splendor of his coming.

Out

Revelation 9:2
He opened the bottomless pit, and smoke went up from the pit, like the smoke of a great furnace; and the sun and the air were darkened by the smoke from the pit.