Matthew 3:5

For this is he that was spoken of by the prophet Esaias, saying, The voice of one crying in the wilderness, Prepare ye the way of the Lord, make his paths straight.

And the same John had his raiment of camel’s hair, and a leathern girdle about his loins; and his meat was locusts and wild honey.

And were baptized of him in Jordan, confessing their sins.

But when he saw many of the Pharisees and Sadducees come to his baptism, he said unto them, O generation of vipers, who hath warned you to flee from the wrath to come?