For this is the one referred to by Isaiah the prophet when he said, “The voice of one calling out in the wilderness, ‘Prepare the way of the Lord, Make His paths straight!’ ”
“Behold, I am sending My messenger, and he will clear a way before Me. And the Lord, whom you are seeking, will suddenly come to His temple; and the messenger of the covenant, in whom you delight, behold, He is coming,” says the Lord of armies.
And it is he who will go as a forerunner before Him in the spirit and power of Elijah, to turn the hearts of fathers back to their children, and the disobedient to the attitude of the righteous, to make ready a people prepared for the Lord.”