Revelation 7:14

And I said unto him, lord, thou knowest. And he said to me, These are those who came out of great tribulation and have washed their long 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 communion with him in the midst of us, and the blood of Jesus Christ, his Son cleanses us from all sin.

Zechariah 3:3-5

Now Joshua was clothed with filthy garments and stood before the angel.

Hebrews 9:14

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

Isaiah 1:18

Then come, shall the LORD say, and we shall be even; if your sins were as scarlet, they shall be made as white as snow; if they were red like crimson, they shall become as wool.

Revelation 1:5

and from Jesus, the Christ, who is the faithful witness and the first begotten of the dead and the prince of the kings of the earth. Unto him that loved us and washed us from our sins with his own blood

Revelation 22:14

Blessed are those who do his commandments that their power and authority might be in the tree of life and they may enter in through the gates into the city.

Exodus 37:3

And he cast for it four rings of gold, to be set by the four corners of it: even two rings upon the one side of it and two rings upon the other side of it.

Zechariah 13:1

In that time there shall be an open fountain for the house of David and for the inhabitants of Jerusalem against sin and against uncleanness.

Matthew 24:21

for then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.

John 13:8-14

Peter said unto him, Thou shalt never wash my feet. Jesus answered him, If I wash thee not, thou shalt have no part with me.

John 16:33

These things I have spoken unto you that in me ye might have peace. In the world ye shall have tribulation; but be of good cheer; I have overcome the world.

Acts 14:22

confirming the souls of the disciples and exhorting them to remain in the faith, and that we must through much tribulation enter into the kingdom of God.

Romans 5:3

And not only this, but we even glory in the tribulations, knowing that the tribulation works patience;

1 Corinthians 6:11

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

Ephesians 5:26-27

that he might sanctify and cleanse her in the washing of water by the word,

2 Thessalonians 1:4

so that we ourselves glory in you in the congregations of God for your patience and faith in all your persecutions and tribulations that ye endure and

Hebrews 13:12

Therefore, Jesus also, that he might sanctify the people with his own blood, suffered outside the gate.

1 Peter 1:19

but with the precious blood of the Christ, as of a lamb without blemish and without contamination,

Revelation 2:9

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

Revelation 5:9

And they sang a new song, saying, Thou art worthy to take the book and to open its seals, for thou wast slain and hast redeemed us unto God by thy blood, out of every kindred and tongue and people and nation

Revelation 6:9-11

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

Revelation 12:11

And they have overcome 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 those that had gotten the victory over the beast and over its image and over its mark and over the number of its name stand on the sea of glass, having the harps of God.

Revelation 17:6

And I saw the woman drunken with the blood of the saints and with the blood of the martyrs of Jesus; and when I saw her, I marvelled with great surprise.

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.

Bible References

Thou

Exodus 37:3
And he cast for it four rings of gold, to be set by the four corners of it: even two rings upon the one side of it and two rings upon the other side of it.

And have

Revelation 1:5
and from Jesus, the Christ, who is the faithful witness and the first begotten of the dead and the prince of the kings of the earth. Unto him that loved us and washed us from our sins with his own blood
Isaiah 1:18
Then come, shall the LORD say, and we shall be even; if your sins were as scarlet, they shall be made as white as snow; if they were red like crimson, they shall become as wool.
Zechariah 3:3
Now Joshua was clothed with filthy garments and stood before the angel.
Zechariah 13:1
In that time there shall be an open fountain for the house of David and for the inhabitants of Jerusalem against sin and against uncleanness.
John 13:8
Peter said unto him, Thou shalt never wash my feet. Jesus answered him, If I wash thee not, thou shalt have no part with me.
1 Corinthians 6:11
And such were some of you, but now ye are washed, but now ye are sanctified, but now ye are justified in the name of the Lord Jesus and in the Spirit of our God.
Ephesians 5:26
that he might sanctify and cleanse her in the washing of water by the word,
Hebrews 9:14
how much more shall the blood of the Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from the works of death to serve the living God?
1 John 1:7
But if we walk in the light, as he is in the light, we have communion with him in the midst of us, and the blood of Jesus Christ, his Son cleanses us from all sin.

The blood

Revelation 5:9
And they sang a new song, saying, Thou art worthy to take the book and to open its seals, for thou wast slain and hast redeemed us unto God by thy blood, out of every kindred and tongue and people and nation
Revelation 12:11
And they have overcome 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
Therefore, Jesus also, that he might sanctify the people with his own blood, suffered outside the gate.
1 Peter 1:19
but with the precious blood of the Christ, as of a lamb without blemish and without contamination,

General references

Genesis 22:8
And Abraham answered, My son, God will provide himself a lamb for a burnt offering, so they both went together.
Leviticus 15:5
And whoever touches his bed shall wash his clothes and bathe himself in water and be unclean until the evening.
Zechariah 3:3
Now Joshua was clothed with filthy garments and stood before the angel.
Matthew 5:4
Blessed are those that mourn, for they shall be comforted.