Matt 3:7-10
7 When John realized that a lot of Pharisees and Sadducees were showing up for a baptismal experience because it was becoming the popular thing to do, he exploded: "Brood of snakes! What do you think you're doing slithering down here to the river? Do you think a little water on your snakeskins is going to make any difference? 8 It's your life that must change, not your skin! 9 And don't think you can pull rank by claiming Abraham as father. Being a descendant of Abraham is neither here nor there. Descendants of Abraham are a dime a dozen. 10 What counts is your life. Is it green and blossoming? Because if it's deadwood, it goes on the fire.