Luke 3:7-9

7He said therefore to the crowds which went out to be baptised by him, Offspring of vipers, who has forewarned you to flee from the coming wrath?

8Produce therefore fruits worthy of repentance; and begin not to say in yourselves, We have Abraham for [our] father, for I say unto you that 1God is able of these stones to raise up children to Abraham.

9And already also the axe is applied to the root of the trees; every tree therefore not producing good fruit is cut down and cast into [the] fire.