We need a King that will bring Joy, peace, unity, and all of the real promises of Advent. That King is Jesus.
The middle chapters of Malachi continue reminding us of the whole of the Old Testament - this week the kings. A king is needed to enforce the covenant so that there will be joy, peace, and unity. Instead, there is no king. And even when there were kings there were no ultimate kings who secured the covenant promises of joy, peace, and unity. Malachi points us to a coming King! The King of the covenant - and the new covenant. The only King where complete joy, peace, and unity are found.