Isaiah 1:18

1:18 Come, let’s consider your options,” says the Lord.

“Though your sins have stained you like the color red,

you can become white like snow;

though they are as easy to see as the color scarlet,

you can become white like wool.

Ephesians 5:26-27

5:26 to sanctify her by cleansing her with the washing of the water by the word, 5:27 so that he may present the church to himself as glorious – not having a stain or wrinkle, or any such blemish, but holy and blameless.

Revelation 7:13-14

7:13 Then one of the elders asked me, “These dressed in long white robes – who are they and where have they come from?” 7:14 So I said to him, “My lord, you know the answer.” Then he said to me, “These are the ones who have come out of the great tribulation. They have washed their robes and made them white in the blood of the Lamb!