A Messenger in the maze

We look at a book that most Christians are not that familiar with - Malachi.  He is "the Messenger" from God who tells us that God will refine us like gold and silver.  We look how God works to refine us, largely by building our confidence that we can indeed live as godly, good people.  We consider what we as Christians look to as our leader through life.  We don't have a prophet like Malachi as our Messenger.  Who do we have?