Matthew 15:15-20

And Peter answered and said unto him, Declare unto us the parable. And he said, Are ye also even yet without understanding? Perceive ye not, that whatsoever goeth into the mouth passeth into the belly, and is cast out into the draught? But the things which proceed out of the mouth come forth out of the heart; and they defile the man. For out of the heart come forth evil thoughts, murders, adulteries, fornications, thefts, false witness, railings: these are the things which defile the man; but to eat with unwashen hands defileth not the man.