“Listen and understand: it is not what goes into the mouth that defiles a person, but it is what comes out of the mouth that defiles”
Mathew: 15: 10-11
To a complaint of Pharisees and scribes against the disciples for they are breaking the traditional laws of elders. Jesus was strongly teaching them and criticizing their traditions and breaking of Gods laws for their personal benefits and traditions.
He was very clear that this is not what and how you take food according to the tradition but what you teach and how you are to your brother is much important. He said to the crowd and the Pharisees and scribes that the words coming out of your mouth that defiles you.