The message of Micah isn't altogether different than the messages of the other prophets.  First there's a warning of the judgment that was to come.  After all, the people had sinned, and as Paul teaches us in Romans 6:23 that the wages of sin is death.  It's because of the sin of the people that they were going to experience the wrath of God.  Thankfully, however, the story doesn't end there.  They weren't simply going to face wrath; they had hope for a bright future because of the Redeemer whom God would send.  Micah 4 shares a vision of a world full of peace where righteousness reigns supreme.  There is a light at the end of the tunnel, and there is hope for the future.  The great news is that we just celebrated this Hope on Christmas, and we too can lay claim to it.  Don't be discouraged because of the present darkness; Hope will return.