An explanation of how repentant sinners are to be freed from their sins is given through the prophet Isaiah in the words: Wash yourselves and be clean. Remove the evil from your souls; learn to do what is right. Be just to the orphan, vindicate the widow. Come, let us reason together, says the Lord. If your sins are like scarlet, I will make them white as wool; if they are like crimson, I will make them white as snow.
-- Saint Justin Martyr