From my little bit of background research, Mark is thought to be a close follower of Peter, one of Jesus' 12 disciples. His gospel echoes much of what we just read in the book of Matthew. It doesn't seem to be as detailed, though. In Mark 1-3, John the Baptist preaches and baptizes in the wilderness. John baptizes Jesus in the Jordan River, and then Jesus begins sharing the Good News everywhere He goes. He calls His disciples to follow Him, urges people to repent, forgives sin, and heals many.
I really love the story of the four men whose faith called them to lower their paralyzed friend through the roof where Jesus was staying. That's some gutsy and amazing faith.
