Can you imagine complete silence? It's hard to in our culture today in which televisions, radios, etc. are constantly blaring. But in this morning's text a silence of 400 years is broken. Don't misunderstand, not everyone was silent during this period. Women and men were talking.. Boys and girls were talking. But there was no prophet speaking the Word of the LORD. No one was truthfully saying, "Thus says the LORD…"
In reality two silences are broken in this morning's text. For one, the 400 year period without a Word from God and for another, a gap of approximately 30 years in the life of Jesus. Matthew skips directly from his birth and infancy narrative to an event that occurs approximately 30 years later: the ministry of John the Baptist. Both of these silences are broken by the sound of a voice.
The voice which breaks the silence is the voice of John the Baptist, who may rightly be called the last of the Old Testament Prophets. He is functioning as a Herald by announcing the coming of the King. In the ancient world, a herald was one who went ahead of a king's chariot to prepare the road. He would command a crew which would smooth out the usually rough roads of that day by filling potholes and removing boulders. The herald would also go before the king shouting, "Make way, the King is coming!" One commentator noted that such "efforts to make a road level and smooth were restricted to times when royalty was on its way" (Robert Mounce, Matthew NIBC, 23).
This was the function of John the Baptist.