“As it is written and forever remains in the [writings of the] prophet Isaiah: “B EHOLD, I SEND M Y MESSENGER AHEAD OF Y OU, W HO WILL PREPARE Y OUR WAY— A VOICE OF ONE SHOUTING IN THE WILDERNESS, ‘P REPARE THE WAY OF THE LORD, M AKE H IS PATHS STRAIGHT!’ ” John the Baptist appeared in the wilderness preaching a baptism of repentance for the forgiveness of sins [that is, requiring a change of one’s old way of thinking, turning away from sin and seeking God and His righteousness].”
Mark 1:2-4 AMP