“I baptize you with water for repentance, but he who is coming after me is mightier than I, whose sandals I am not worthy to carry. He will baptize you with the Holy Spirit and fire.”

John the Baptist in Matthew 3:11

Being baptized with fire here is not a good thing. John just said that fruitless trees will be cut down and thrown into the fire. In the next verse, he says that Jesus will winnow the harvest and “the chaff he will burn with unquenchable fire.”

John’s point is don’t be fruitless and don’t be chaff. The good portion of the harvest Jesus will baptize with the Holy Spirit–he will give them God himself, and gather them in. The rest burn with a fire than never ends.