Mark, writing to the Gentiles, begins his gospel emphasizing the deity of Jesus and His role as Savior of the world.
Consistent with his straightforward writing style, Mark goes directly to the point by referencing two Old Testament prophecies about the forerunner who will precede and announce the coming Messiah.
Mark now reports an oddly appareled John the Baptist actively fulfilling his Messianic forerunner role as evidenced by all the country of Judea going out to him in the wilderness, confessing their sins, and being baptized in the Jordan river.
John the Baptizer answers the question posed by all of Judea and Jerusalem: he is not the Messiah. However, John the Baptizer unequivocally announces the Messiah is coming, and He will baptize with the Holy Spirit who is the down payment and assurance of salvation.
Jesus arrives from Galilee to be baptized; the Holy Spirit descends on Him and the Father approves. The Spirit’s descent is visible evidence that Jesus was equipped to fulfill His role to baptize with the Holy Spirit.
Immediately after Jesus's temptation, the Holy Spirit leads Jesus into the wilderness. By yielding to and obeying the Holy Spirit, Jesus sets the example for everyone on how they ought to live. His time in the wilderness also reveals that God allows testing in the lives of those living a life that pleases Him as preparation for great service.
Mark’s terse statement, “Jesus came,” is in effect a first-century press release with three points: the time is fulfilled; the kingdom of God is at hand; repent and believe.
Jesus and His new disciples go to the Galilean town of Capernaum. On the Sabbath they enter a synagogue, where Jesus teaches. Those in attendance are amazed at the authority with which He teaches.
While Jesus is teaching in a Capernaum synagogue, a man with an unclean spirit begins crying out, identifying Jesus as the Holy One of God. Jesus swiftly rebukes the spirit to keep quiet and leave the man. It does.