Bathing – you wash the outside, but don't clean the inside.

You blind guides! You strain out a gnat but swallow a camel. "Woe to you, teachers of the law and Pharisees, you hypocrites! You clean the outside of the cup and dish, but inside they are full of greed and self-indulgence. Blind Pharisee! First clean the inside of the cup and dish, and then the outside also will be clean. Matthew 23:24-26

Then the Lord said to him, "Now then, you Pharisees clean the outside of the cup and dish, but inside you are full of greed and wickedness. You foolish people! Did not the one who made the outside make the inside also? Luke 11:39-40