Being a Christian is not about us.  Being a follower of Christ is about something much bigger.  It’s about being a part of the Kingdom of God.  Everything is about the heart.  In this passage, Jesus declares certain foods “clean” that were previously forbidden.  By doing so, Jesus is teaching that it is what comes out of a person that defiles.  The heart is complicated, it is the control center of all we do.  It is from this place that all sins come.