For this is he that was spoken of by Isaias the prophet, saying: A voice of one crying in the desert, Prepare ye the way of the Lord, make straight his paths.
Behold I send my angel, and he shall prepare the way before my face. And presently the Lord, whom you seek, and the angel of the testament, whom you desire, shall come to his temple. Behold he cometh, saith the Lord of hosts.
And he shall go before him in the spirit and power of Elias; that he may turn the hearts of the fathers unto the children, and the incredulous to the wisdom of the just, to prepare unto the Lord a perfect people.