What does Mark 4:1 mean?
In Mark 3:9, Jesus asks the disciples to ready a boat by the shore of the Sea of Galilee in case the crowd becomes too aggressive. The boat acts as both a raised stage and as a pulpit, and the physical distance allows Him to take a break from healing people and casting out demons. The acoustics of the water carry His voice, even though the boat is just far enough away from shore that the people can't easily approach. Matthew 13:1 says this is the same day Jesus' mother and brothers came to take Him back to Nazareth.During a drought in 1986, a boat was found in the Sea of Galilee dated to about the same time as Jesus. It was 27 feet (8 meters) long and 7 1/2 feet (2 meters) wide. It had a flat bottom and shows signs it had a mast for a sail. The bow was pointed while the stern was more rounded. It appears to have been just over 4 feet (1 meter) high. Such a craft would have been big enough for all the disciples to fit inside but small enough that skilled fishermen like Peter, Andrew, James, and John could have maneuvered it easily.
Although Jesus has the authority and the willingness to perform miracles of healing, that is not His primary mission. The miracles act as proof that God authorizes His message. It's the message itself that matters. The theme of the entire chapter is how He will spread that message.