Luke 3:1-6;15-18 (ESV)

John the Baptist Prepares the Way
3 In the fifteenth year of the reign of Tiberius Caesar, Pontius Pilate being governor of Judea, and Herod being tetrarch of Galilee, and his brother Philip tetrarch of the region of Ituraea and Trachonitis, and Lysanias tetrarch of Abilene, 2 during the high priesthood of Annas and Caiaphas, the word of God came to John the son of Zechariah in the wilderness. 3 And he went into all the region around the Jordan, proclaiming a baptism of repentance for the forgiveness of sins. 4 As it is written in the book of the words of Isaiah the prophet, “The voice of one crying in the wilderness:
‘Prepare the way of the Lord,
make his paths straight.
5 Every valley shall be filled,
and every mountain and hill shall be made low,
and the crooked shall become straight,
and the rough places shall become level ways,
6 and all flesh shall see the salvation of God.’”

15 As the people were in expectation, and all were questioning in their hearts concerning John, whether he might be the Christ, 16 John answered them all, saying, “I baptize you with water, but he who is mightier than I is coming, the strap of whose sandals I am not worthy to untie. He will baptize you with the Holy Spirit and fire. 17 His winnowing fork is in his hand, to clear his threshing floor and to gather the wheat into his barn, but the chaff he will burn with unquenchable fire.” 18 So with many other exhortations he preached good news to the people.