And he will go ahead before Him in the spirit and power of Elijah “to turn the hearts of fathers to their children,” and disobedient ones to the wisdom of the just, to make ready a people having been prepared for the Lord. Mal. 4:5, 6
And He said to them, These are the words which I spoke to you yet being with you, that all the things must be fulfilled having been written in the Law of Moses, and the Prophets, and the Psalms, concerning Me.