In Matthew 15:1-20, Jesus was challenged by Pharisees from Jerusalem about why His disciples did not wash their hands before eating. Jesus turned their accusation back around asking why they imposed a man-made tradition on the people that led them to disobey the 5th Commandment to honor father and mother. Then Jesus explained to His disciples that it is not the physical cleanliness of what we allow into our mouths that defiles us, but the evil words we allow out of our mouths from the fullness of our hearts which defiles us.