Here John the Baptist quotes the prophet Isaiah with the classic preparations for the coming Messiah. The proper way is to prepare is not road construction, it is to attend to justice. The poor in every time have a difficult road to achieve even modest success. So often when we imagine Christ coming, we imagine Christ will fix the world's problems. John the Baptist and the prophet Isaiah seem to be saying it is our work as well.
How is working for justice related to peace? What can you do to work for justice in our community and city?