But the angel said to him, "Don't be afraid, Zacharias, because your request has been heard, and your wife, Elizabeth, will bear you a son, and you shall call his name John.
And, of course, throughout the Old Testament prophesies, there was that promise that the Messiah would sit upon the throne of David, to order it, and to establish it in righteousness and in judgment, from henceforth, even forever.