Luke 3:2-4

2in the high priesthood of Annas and Caiaphas [his son-in-law], the word of God came to John, the son of Zacharias, in the wilderness.

3And he went into all the country around the Jordan, preaching a baptism of repentance for the forgiveness of sin;

4as it is written and forever remains written in the book of the words of Isaiah the prophet, “The voice of one shouting in the wilderness, ‘Prepare the way of the Lord, Make His paths straight.