Revelation 6:9

And when he opened the fifth seal, I saw under the altar the souls of those killed for the word of God and for the testimony which they had.

Revelation 14:18

and another angel came out from the altar, who had power over fire, and cried with a loud voice to him who had the sharp sickle, saying, Send your sharp sickle and gather the grapes of the vine of the earth, for its grapes are ripe.

Revelation 20:4

And I saw thrones, and they sat on them, and judgment was given them, and the souls of those who have been beheaded for the testimony of Jesus and the word of God, and who did not worship the beast nor his image and did not receive the mark on their forehead and on their right hand; and they lived and reigned with Christ a thousand years;

Revelation 1:9

I, John, your brother and companion in the affliction and kingdom and patience in Christ Jesus, was in the island called Patmos on account of the word of God and the testimony of Jesus.

John 16:2

They shall put you out of the synagogues; but the hour is coming when every one that kills you will think he renders God a service.

Revelation 16:7

And I heard the altar say, Yes, Lord God Almighty, true and righteous are thy judgments.

Philippians 1:23

But I am in a strait between the two, having a desire to depart and be with Christ; for this is far better;

Philippians 2:17

But if I am even poured out as a libation on the sacrifice and service of your faith, I rejoice and congratulate you all;

2 Timothy 1:8

Be not ashamed therefore of the testimony of our Lord, nor of me his prisoner, but endure affliction with us in the gospel according to the power of God,

2 Timothy 4:6

For I am already being offered, and the time of my departure has come.

Revelation 1:2

who declared the word of God and the testimony of Jesus Christ which he saw.

Revelation 2:13

I know your works and where you live; where Satan's throne is; and you hold my name, and did not deny my faith in the days in which Antipas my faithful martyr was killed among you, where Satan dwells.

Revelation 8:3

And another angel came and stood by the altar, having a golden censer, and there was given him much incense to present with the prayers of all the saints on the golden altar before the throne.

Revelation 9:13

And the sixth angel sounded; and I heard a voice from the four horns of the golden altar before God,

Revelation 11:3-7

And I will give charge to my two witnesses, and they shall prophesy twelve hundred and sixty days [three years and a half] clothed with sackcloth.

Revelation 12:11-17

And they conquered him by the blood of the Lamb and by the word of their testimony, and exposed their lives to death.

Revelation 19:10

And I fell before his feet to worship him. And he said to me, See [that you do it] not; I am your fellow-servant and of your brothers who have the testimony of Jesus; worship God. For the testimony of Jesus is the spirit of prophecy.

Treasury of Scripture Knowledge

Summary

And when he had opened the fifth seal, I saw under the altar the souls of them that were slain for the word of God, and for the testimony which they held:

General references

Bible References

I saw

Revelation 8:3
And another angel came and stood by the altar, having a golden censer, and there was given him much incense to present with the prayers of all the saints on the golden altar before the throne.
Revelation 9:13
And the sixth angel sounded; and I heard a voice from the four horns of the golden altar before God,
Revelation 14:18
and another angel came out from the altar, who had power over fire, and cried with a loud voice to him who had the sharp sickle, saying, Send your sharp sickle and gather the grapes of the vine of the earth, for its grapes are ripe.
John 16:2
They shall put you out of the synagogues; but the hour is coming when every one that kills you will think he renders God a service.
2 Timothy 4:6
For I am already being offered, and the time of my departure has come.

The souls

Revelation 20:4
And I saw thrones, and they sat on them, and judgment was given them, and the souls of those who have been beheaded for the testimony of Jesus and the word of God, and who did not worship the beast nor his image and did not receive the mark on their forehead and on their right hand; and they lived and reigned with Christ a thousand years;
Philippians 1:23
But I am in a strait between the two, having a desire to depart and be with Christ; for this is far better;

Slain

Revelation 1:9
I, John, your brother and companion in the affliction and kingdom and patience in Christ Jesus, was in the island called Patmos on account of the word of God and the testimony of Jesus.
Revelation 2:13
I know your works and where you live; where Satan's throne is; and you hold my name, and did not deny my faith in the days in which Antipas my faithful martyr was killed among you, where Satan dwells.
Revelation 11:3
And I will give charge to my two witnesses, and they shall prophesy twelve hundred and sixty days [three years and a half] clothed with sackcloth.
Revelation 12:11
And they conquered him by the blood of the Lamb and by the word of their testimony, and exposed their lives to death.
Revelation 19:10
And I fell before his feet to worship him. And he said to me, See [that you do it] not; I am your fellow-servant and of your brothers who have the testimony of Jesus; worship God. For the testimony of Jesus is the spirit of prophecy.
2 Timothy 1:8
Be not ashamed therefore of the testimony of our Lord, nor of me his prisoner, but endure affliction with us in the gospel according to the power of God,

General references

Matthew 21:35
And the husbandmen took his servants, and beat one, and killed another, and stoned another.
Hebrews 12:4
You have not yet resisted to blood contending against sin.