He saw the Pharisees and Sadducees come to his baptism, knew they werent there to repent and be baptized, and cried out to them, O generation of vipers, who hath warned you to flee from the wrath to come? 회개에 합당한 열매를 맺으라 매트... 조심해, 존. Careful there John, you may offend those fellows.