Luke 11:39 Then the Lord said to him, “Now you Pharisees make the outside of the cup and dish clean, but your inward part is full of greed and wickedness.
One of the things I grew up with was always having to clean my hands before eating, so reading this would give me a lift!
What Christ was talking about here though was the difference between worldly cleanliness and spiritual cleanliness. God looks inside of us and sees what no man sees.
What we see on the outside may not be the same on the inside, but what is on the inside will typically raise its head and show us on the outside.
Always be aware that God know you better than anyone!