Matthew 3:5-9

Then went out to him Jerusalem, and all Judaea, and all the region round about Jordan,

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?

Bring forth therefore fruits meet for repentance:

And think not to say within yourselves, We have Abraham to our father: for I say unto you, that God is able of these stones to raise up children unto Abraham.