God knows us on a first name basis.  But did you know that God wants us to know him just as personally and intimately.  God does not want us to call him Sir or Master, but Daddy.  And Yahweh is the Old Testament name that does this.  In over 6800 places this name is used and referenced in just about that many other places, Yahweh speaks of a God who we can know personally on a one on one basis.  Listen for more about this name in this sermon.