Revelation 7:14

I said to him, “My lord, you know.” And he said to me, “These are the ones who come out of the great tribulation, 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 Himself is in the Light, we have fellowship with one another, and the blood of Jesus His Son cleanses us from all sin.

Zechariah 3:3-5

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

Hebrews 9:14

how much more will the blood of Christ, who through the eternal Spirit offered Himself without blemish to God, cleanse your conscience from dead works to serve the living God?

Isaiah 1:18

“Come now, and let us reason together,”
Says the Lord,
Though your sins are as scarlet,
They will be as white as snow;
Though they are red like crimson,
They will be like wool.

Revelation 1:5

and from Jesus Christ, the faithful witness, the firstborn of the dead, and the ruler of the kings of the earth. To Him who loves us and released us from our sins by His blood—

Revelation 22:14

Blessed are those who wash their robes, so that they may have the right to the tree of life, and may enter by the gates into the city.

Exodus 37:3

He cast four rings of gold for it on its four feet; even two rings on one side of it, and two rings on the other side of it.

Zechariah 13:1

“In that day a fountain will be opened for the house of David and for the inhabitants of Jerusalem, for sin and for impurity.

Matthew 24:21

For then there will be a great tribulation, such as has not occurred since the beginning of the world until now, nor ever will.

John 13:8-14

Peter *said to Him, “Never shall You wash my feet!” Jesus answered him, If I do not wash you, you have no part with Me.”

John 16:33

These things I have spoken to you, so that in Me you may have peace. In the world you have tribulation, but take courage; I have overcome the world.”

Acts 14:22

strengthening the souls of the disciples, encouraging them to continue in the faith, and saying, “Through many tribulations we must enter the kingdom of God.”

Romans 5:3

And not only this, but we also exult in our tribulations, knowing that tribulation brings about perseverance;

1 Corinthians 6:11

Such were some of you; but you were washed, but you were sanctified, but you were justified in the name of the Lord Jesus Christ and in the Spirit of our God.

Ephesians 5:26-27

so that He might sanctify her, having cleansed her by the washing of water with the word,

2 Thessalonians 1:4

therefore, we ourselves speak proudly of you among the churches of God for your perseverance and faith in the midst of all your persecutions and afflictions which you endure.

Hebrews 13:12

Therefore Jesus also, that He might sanctify the people through His own blood, suffered outside the gate.

1 Peter 1:19

but with precious blood, as of a lamb unblemished and spotless, the blood of Christ.

Revelation 2:9

‘I know your tribulation and your poverty (but you are rich), and the blasphemy by those who say they are Jews and are not, but are a synagogue of Satan.

Revelation 5:9

And they *sang a new song, saying, Worthy are You to take the book and to break its seals; for You were slain, and purchased for God with Your blood men from every tribe and tongue and people and nation.

Revelation 6:9-11

When the Lamb broke the fifth seal, I saw underneath the altar the souls of those who had been slain because of the word of God, and because of the testimony which they had maintained;

Revelation 12:11

And they overcame him because of the blood of the Lamb and because of the word of their testimony, and they did not love their life even when faced with death.

Revelation 15:2

And I saw something like a sea of glass mixed with fire, and those who had been victorious over the beast and his image and the number of his name, standing on the sea of glass, holding 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. When I saw her, I wondered greatly.

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
He cast four rings of gold for it on its four feet; even two rings on one side of it, and two rings on the other side of it.

And have

Revelation 1:5
and from Jesus Christ, the faithful witness, the firstborn of the dead, and the ruler of the kings of the earth. To Him who loves us and released us from our sins by His blood—
Isaiah 1:18
“Come now, and let us reason together,”
Says the Lord,
Though your sins are as scarlet,
They will be as white as snow;
Though they are red like crimson,
They will be like wool.
Zechariah 3:3
Now Joshua was clothed with filthy garments and standing before the angel.
Zechariah 13:1
“In that day a fountain will be opened for the house of David and for the inhabitants of Jerusalem, for sin and for impurity.
John 13:8
Peter *said to Him, “Never shall You wash my feet!” Jesus answered him, If I do not wash you, you have no part with Me.”
1 Corinthians 6:11
Such were some of you; but you were washed, but you were sanctified, but you were justified in the name of the Lord Jesus Christ and in the Spirit of our God.
Ephesians 5:26
so that He might sanctify her, having cleansed her by the washing of water with the word,
Hebrews 9:14
how much more will the blood of Christ, who through the eternal Spirit offered Himself without blemish to God, cleanse your conscience from dead works to serve the living God?
1 John 1:7
but if we walk in the Light as He Himself is in the Light, we have fellowship with one another, and the blood of Jesus His Son cleanses us from all sin.

The blood

Revelation 5:9
And they *sang a new song, saying, Worthy are You to take the book and to break its seals; for You were slain, and purchased for God with Your blood men from every tribe and tongue and people and nation.
Revelation 12:11
And they overcame him because of the blood of the Lamb and because of the word of their testimony, and they did not love their life even when faced with death.
Hebrews 13:12
Therefore Jesus also, that He might sanctify the people through His own blood, suffered outside the gate.
1 Peter 1:19
but with precious blood, as of a lamb unblemished and spotless, the blood of Christ.

General references

Genesis 22:8
Abraham said, “God will provide for Himself the lamb for the burnt offering, my son.” So the two of them walked on together.
Leviticus 15:5
Anyone, moreover, who touches his bed shall wash his clothes and bathe in water and be unclean until evening;
Zechariah 3:3
Now Joshua was clothed with filthy garments and standing before the angel.
Matthew 5:4
“Blessed are those who mourn, for they shall be comforted.