Matthew 3:7-10

3:7 But when he saw many Pharisees and Sadducees coming to his baptism, he said to them, “You offspring of vipers! Who warned you to flee from the coming wrath? 3:8 Therefore produce fruit that proves your repentance, 3:9 and don’t think you can say to yourselves, ‘We have Abraham as our father.’ For I tell you that God can raise up children for Abraham from these stones! 3:10 Even 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.

Matthew 3:12

3:12 His winnowing fork is in his hand, and he will clean out his threshing floor and will gather his wheat into the storehouse, but the chaff he will burn up with inextinguishable fire.”