Then one of the elders addressed me, saying, "Who are these, d clothed in white robes, and from where have they come?"
I said to him, "Sir, you know." And he said to me, "These are the ones coming out of j the great tribulation. k They have washed their robes and l made them white m in the blood of the Lamb.
English Standard Version (ESV) The Holy Bible, English Standard Version Copyright © 2001 by Crossway Bibles, a division of Good News Publishers.
After this I looked, and behold, a great multitude that no one could number, from every nation, from all tribes and peoples and languages, standing before the throne and before the Lamb, clothed in white robes, with palm branches in their hands.
For then there will be great tribulation, such as has not been from the beginning of the world until now, no, and never will be.
Blessed are those who wash their robes, so that they may have the right to the tree of life and that they may enter the city by the gates.
Come now, let us reason together, says the Lord : though your sins are like scarlet, they shall be as white as snow; though they are red like crimson, they shall become like wool.
Zechariah 3:3 - 5
Now Joshua was standing before the angel, clothed with filthy garments.
Many shall purify themselves and make themselves white and be refined, but the wicked shall act wickedly. And none of the wicked shall understand, but those who are wise shall understand.
1 John 1:7
But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin.
And from Jesus Christ the faithful witness, the firstborn of the dead, and the ruler of kings on earth. To him who loves us and has freed us from our sins by his blood