Luke 3:3-8

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.’ ” Then he said to the multitudes that came out to be baptized by him, “Brood of vipers! Who warned you to flee from the wrath to come? Therefore bear fruits worthy of repentance, and do not begin to say to yourselves, ‘We have Abraham as our father.’ For I say to you that God is able to raise up children to Abraham from these stones.