He will go before him in the spirit and power of Elijah, 'to turn the hearts of the fathers to the children,' and the disobedient to the wisdom of the just; to make ready a people prepared for the Lord."
 Thus all through it is not description alone, but a direct address to the heart In Matthew it was most appropriately a general discourse. Here it is made immediately applicable. That is, He looks at the persons then before Him, and pronounces a blessing upon them distinctly and personally.
