Fire is sometimes used as an illustration of the purifying agent in the life of a believer. He takes us through the fire of trials and temptation to clear out all 
the imperfections in our lives just as the refiner takes the gold and silver through the refining fires. The goal is purification. John the Baptist said that while he baptized with water, the one coming after him would Baptize with the Holy Spirit and with fire.
After His Baptism, Jesus was tempted in the wilderness by Satan. He was tempted in all ways that we are tempted. He was tempted to succumb to the lusts of the flesh when Satan challenged him to turn the rocks into bread to satisfy his hunger. He was tempted to succumb to the lust of the eyes when Satan showed him all the kingdoms of the world and said they could all be his if he’d just worship Satan. He was tempted to succumb to the pride of Life when Satan challenged him to throw himself from the temple knowing He was the unique Son of God. But Jesus came away from his temptation without sin.
Baptism is a step of obedience and symbolic of a person’s intention and commitment to follow the Lord. It’s the first step of discipleship. Baptized believers are also tempted in the same ways that Jesus was tempted. We too are tempted to give our attention to the “things” we could have if we didn’t make God and His Word the highest priority in life. We too are tempted to satisfy our fleshly desires in ways contrary to our commitments to obey God’s commands. We too are tempted to think or our loved ones should be exempt from the normal pains and sufferings in life.
In Mark 10, Jesus asks His disciples if they are able “to be baptized with the baptism with which I am baptized.” They said we are able. And Jesus assured them that they would indeed be baptized with the baptism with which He was baptized.
Chuck
“He will baptize you with the Holy Spirit and with fire.” Luke 3:16