'Washed' in the Bible

For even if you are washed with soda and take much soap, still your evil-doing is marked before me, says the Lord God.

But you, Lord, have knowledge of all the designs which they have made against my life; let not their evil-doing be covered or their sin be washed away from before your eyes: but let it be a cause of falling before you: so do to them in the time of your wrath.