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."
The disobedient — Or unbelieving, απειθεις, the persons who would no longer credit the predictions of the prophets, relative to the manifestation of the Messiah. Unbelief and disobedience are so intimately connected, that the same word in the sacred writings often serves for both.