Revelation 7:14

And he said to me, These are they who come out of great affliction, and they have washed their robes and made them white in the blood of the Lamb.

1 John 1:7

But if we walk in the light as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.

Hebrews 9:14

How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge our conscience from dead works, to serve the living God?

Revelation 1:5

And from Jesus Christ, the faithful witness, the first begotten from the dead, and the prince of the kings of the earth:

Revelation 22:14

Happy are they that do his commandments, that they may have right to the tree of life, and may enter in by the gates into the city.

Matthew 24:21

For then shall be great tribulation, such as was not from the beginning of the world to this time, nor ever shall be.

John 13:8-14

Peter saith to him, Thou shalt never wash my feet. Jesus answered him, If I wash thee not, thou hast no part with me.

John 16:33

I have spoken these things to you, that ye may have peace in me. In the world ye shall have tribulation; but take courage: I have overcome the world.

Acts 14:22

Confirming the souls of the disciples, and exhorting them to continue in the faith; and that we must through many tribulations enter into the kingdom of God.

Romans 5:3

And not only so, but we glory in tribulations also,

1 Corinthians 6:11

And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God.

Ephesians 5:26-27

That he might sanctify it (having cleansed it by the washing of water) through the word:

2 Thessalonians 1:4

So that we ourselves glory of you in the churches of God, for your patience and faith in all your persecutions and sufferings which ye endure:

Hebrews 13:12

Wherefore Jesus also, that he might sanctify the people by his own blood, suffered without the gate.

1 Peter 1:19

But with the precious blood of Christ, as of a lamb without blemish and without spot,

Revelation 2:9

I know thy affliction and poverty, (but thou art rich) and the reviling of those who say they are Jews and are not, but a synagogue of Satan.

Revelation 5:9

And they sing a new song, saying, Worthy art thou to take the book and to open the seals thereof; for thou wast slain and hast redeemed us to God by thy blood, out of every tribe, and tongue, and people, and nation,

Revelation 6:9-11

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

Revelation 12:11

And they overcame him by the blood of the Lamb, and by the word of their testimony; and they loved not their lives unto the death.

Revelation 15:2

And I saw as it were a sea of glass mingled with fire, and them that gained the victory over the wild beast, and over his image, and over the number of his name, standing at the sea of glass, and having the harps of God.

Revelation 17:6

And I saw the woman drunk with the blood of the saints, and with the blood of the witnesses of Jesus. And when I saw, I wondered exceedingly.

Treasury of Scripture Knowledge

Summary

And I said unto him, Sir, thou knowest. And he said to me, These are they which came out of great tribulation, and have washed their robes, and made them white in the blood of the Lamb.

General references

Bible References

And have

Revelation 1:5
And from Jesus Christ, the faithful witness, the first begotten from the dead, and the prince of the kings of the earth:
John 13:8
Peter saith to him, Thou shalt never wash my feet. Jesus answered him, If I wash thee not, thou hast no part with me.
1 Corinthians 6:11
And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God.
Ephesians 5:26
That he might sanctify it (having cleansed it by the washing of water) through the word:
Hebrews 9:14
How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge our conscience from dead works, to serve the living God?
1 John 1:7
But if we walk in the light as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.

The blood

Revelation 5:9
And they sing a new song, saying, Worthy art thou to take the book and to open the seals thereof; for thou wast slain and hast redeemed us to God by thy blood, out of every tribe, and tongue, and people, and nation,
Revelation 12:11
And they overcame him by the blood of the Lamb, and by the word of their testimony; and they loved not their lives unto the death.
Hebrews 13:12
Wherefore Jesus also, that he might sanctify the people by his own blood, suffered without the gate.
1 Peter 1:19
But with the precious blood of Christ, as of a lamb without blemish and without spot,

General references

Matthew 5:4
Happy are they that mourn; for they shall be comforted.