Matthew 3:1-12:  At this time John the Baptizer appeared in the desert of Judea, proclaiming, “Change your hearts and minds, for the reign of heaven is about to break upon you!”  
It was John that the prophet Isaiah described when he said, 
“A herald’s voice cries in the desert:  Prepare the way of our God, make straight the paths of God!’”
John was clothed in a garment of camel’s hair and wore a leather belt around his waist.  Grasshoppers and wild honey were his food.  At that time, Jerusalem, all Judea, and the whole region around the Jordan were going out to him.  John baptized them in the Jordan River as they confessed their sins.  
When John saw that many of the Pharisees and Sadducees were coming to be baptized, he said to them, “You pack of snakes!  Who told you to flee from the coming wrath?  Give some evidence that you mean to reform!  And don’t pride yourselves on the claim, ‘Sarah and Abraham are our parents.’  I tell you, God can raise children for Sarah and Abraham from these very stones!
Even now the ax is laid to the root of the tree.  Every tree that is not fruitful will be cut down and thrown into the fire.  I will baptize you in water for repentance, but the One who will follow me is more powerful than I.  I’m not fit even to untie the sandals of the Coming One!  The One who is Coming will baptize you in the Holy Spirit and fire, his winnowing-fan will clear the threshing floor.  The grain will be gathered into the barn, but the chaff will be burned in unquenchable fire.”