American Standard Version (ASV):
And he shall go before his face in the spirit and power of Elijah, to turn the hearts of the fathers to the children, and the disobedient [to walk] in the wisdom of the just; to make ready for the Lord a people prepared [for him] .
King James Version (KJV):
And he shall go before him in the spirit and power of Elias, 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.