The voice of him that cries in the wilderness, Prepare you the way of the LORD, make straight in the desert a highway for our God.
All Commentaries on Isaiah 40:3 Go To Isaiah 40
Augustine of Hippo
AD 430
They were not reborn, those who were baptized by John’s baptism, by which Christ himself was baptized. Rather, they were “prepared” by the ministry of a forerunner, who said, “Prepare a way for the Lord”—for him in whom alone they could be reborn.