Jesus challenges our definition of greatness. He tells his disciples that the last shall be first and that the first shall be last. This goes far beyond mere teaching, however, as Jesus’ birth, life, ministry, and sacrificial death powerfully demonstrate and exemplify this definition of greatness. Jesus comes to earth, not to be served but to serve. This was a challenge to James and John, and it remains a challenge to us today to pursue greatness through humble servanthood.