Luke 3:3-6

And he went into all the region around the Jordan, preaching a baptism of repentance for the remission of sins, as it is written in the book of the words of Isaiah the prophet, saying: “The voice of one crying in the wilderness: ‘Prepare the way of the LORD; Make His paths straight. Every valley shall be filled And every mountain and hill brought low; The crooked places shall be made straight And the rough ways smooth; And all flesh shall see the salvation of God.’ ”