Luke 3:7-9

7John said to the crowds that came out to be baptized by him, “You brood of vipers! Who warned you to flee from the wrath to come?8Bear fruits worthy of repentance. Do not begin to say to yourselves, ‘We have Abraham as our ancestor’; for I tell you, God is able from these stones to raise up children to Abraham.9Even now the ax is lying at the root of the trees; every tree therefore that does not bear good fruit is cut down and thrown into the fire.”