This is the Great Commission.  Here we are directed to do two things.  To teach and baptize.  We are to teach those still living in darkness that there is a light out the darkness they are living in.  We are to baptize, to bring them into the true church of the living God.  Who was this commission directed at?  All believers.  Now that we know the truth we are to share the Gospel with the world.  We all have a part in the army of God.  There are no bench warmers in this team.