Tradition!

Mark 7: 9 And he said to them, “You have a fine way of rejecting the commandment of God in order to establish your tradition! 10 For Moses said, ‘Honor your father and your mother’; and, ‘Whoever reviles father or mother must surely die.’ 11 But you say, ‘If a man tells his father or his mother, “Whatever you would have gained from me is Corban”’ (that is, given to God)— 12 then you no longer permit him to do anything for his father or mother, 13 thus making void the word of God by your tradition that you have handed down. And many such things you do.”

This chapter begins with the Pharisees criticizing Jesus' disciples for not following their rules for clean and unclean hands when eating.  Jesus promptly points out that all of their traditions were man-made rules which in no way revealed the holiness of a person. Here he then points out a major flaw in their actions that showed their traditions to be unbiblical.  From this point he goes on to instruct the people, and especially the disciples, on what it means to be clean before God: it is not by outwardly keeping rules and traditions, but by having an inward transformation by God.  Jesus further demonstrates His point by going to a Gentile area, talking to a Gentile woman, and healing her daughter.  This was a slap in the face to "tradition."  Upon returning to Galilee, Jesus heals many, telling them to be quiet about it, but they cannot retain their joy, "breaking the rules" and telling everyone what Christ has done for them.