John baptized men and women in water, but the Messiah of Israel will baptize in the Holy Spirit and Fire - Matthew 3:11-12.
The Gospel of Mark begins by applying key prophecies to the ministry of John the Baptist. He is the forerunner who prepares the hearts and minds of Israel for the Messiah, and John does so by calling the Jewish nation to repent and baptizing the people “for the remission of sins” - (Isaiah 40:3-5, Mark 1:1-3).