Last night I had a pan that I used to cook chicken, and it has burnt on grease caked to the pan. I would scrape and scrape and scrape, but not making much of a difference. Then, using hot water, I let it soak overnight. Everything released from the pan with a slight scrape, a nudge if you will, the pan was totally clean.
Sometimes, being transformed by the renewing of our mind means letting it soak in God's Word.