Luke 1:16-17, 76

And he will turn many of the children of Israel to the Lord their God, and 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 for the Lord a people prepared.”

And you, child, will be called the prophet of the Most High; for you will go before the Lord to prepare his ways