Luke 3:7
John said to the crowds coming out to be baptized by him: you brood of vipers! Who warned you to flee from the coming wrath? — the brood of vipers is prophetic confrontation at its most direct: the people who have come for baptism are addressed as dangerous serpents fleeing a threatened field. Who warned you to flee suggests they are responding to alarm without genuine repentance. The coming wrath is the eschatological judgment that John's arrival announces.