The baptism of the Holy Spirit is not an experience. It is not accompanied by speaking in tongues or any other kind of feeling or behavior. The things that happen to believers at the moment of salvation are accomplished by the Holy Spirit, not by us , and these things are not experiences. There is a judgment coming at the 2nd Coming of Christ when all nonbelievers are taken from the earth. This removal of unbelievers for judgment is the baptism of fire.
Fire is a symbol for judgment all throughout the Bible.
Examples are the fire which burned the sacrifice on the Hebrew altar, and the fire from God which burned the watered down sacrifices of Elijah and the prophets of Baal. The doctrine of the baptism of fire is stated in Matt. The Lord Jesus taught several parables regarding the end times when believers and unbelievers will be separated. These parables are analogies to the baptism of fire. Wheat and tares - Matt.