Luke 3:7-9

7So John said to the crowds that came out to be baptized by him, “You offspring of vipers! Who warned you to flee from the coming wrath?

8Therefore produce fruit that proves your repentance, and don’t begin to say to yourselves, ‘We have Abraham as our father.’ For I tell you that God can raise up children for Abraham from these stones!

9Even now the ax is laid at the root of the trees, and every tree that does not produce good fruit will be cut down and thrown into the fire.”