Luke 3:2-4

2during the high-priesthood of Annas and Caiaphas, the word of God came to John son of Zechariah in the wilderness. 3He went into all the country around the Jordan, preaching a baptism of repentance for the forgiveness of sins.

4As it is written in the book of the words of Isaiah the prophet: “A voice of one calling in the wilderness, ‘Prepare the way for the Lord, make straight paths for him.