Matthew 3:9-10

and do not presume to say to yourselves [as a defense], ‘We have Abraham for our father [so our inheritance assures us of salvation]’; for I say to you that from these stones God is able to raise up children (descendants) for Abraham. [Luke 3:8] And already the axe [of God’s judgment] is swinging toward the root of the trees; therefore every tree that does not bear good fruit is cut down and thrown into the fire.