Mattityahu 3:6-8

Orthodox Jewish Bible

⁶ Making vidduy (confession of sin) [to Hashem] of their averos (sins), they were submitted to a tevilah (immersion) by him, using the Yarden River as a mikveh mayim (gathering of water).

⁷ But when he saw many of the Perushim and Tzedukim coming to where he was using the Yarden as a mikveh mayim, Yochanan said to them, You banim (sons) of nachashim (snakes)! Who warned you to flee from the charon af [Hashem] habah (the coming burning wrath of Hashem)?

⁸ Produce pri tov l’teshuva (fruit worthy of repentance)!