King James Version
For though thou wash thee with nitre, and take thee much soap, yet thine iniquity is marked before me, saith the Lord GOD.English Standard Version
Though you wash yourself with lye and use much soap, the stain of your guilt is still before me, declares the Lord GOD.Catholic Public Domain Version
Even if you wash yourself with soap, and increase your use of herbal soaps, you are still stained by your iniquity in my sight, says the Lord God