So he traveled throughout Galilee, preaching in their synagogues and driving out demons. - Mark 1:39
Now the overall context, in a nut shell, involves Jesus calling the disciples (1:14-20), then Jesus performs an exorcism (1:21-28), heals many (1:29-34)and people search everywhere for him (1:35-39). Then Jesus heals a man of leprosy (1:40-45), heals a paralyzed man (2:1-12) and calls more disciples (2:13-17).
First notice that Jesus calls disciples to follow after him. This is a call to follow which means it is a call to learn by Jesus' example and subsequently it is a call to go and do likewise. Disciples are to imitate their Master.
As I was thinking about this in light of the highlighted verse quoted above, I couldn't help but reflect on my own life and ministry. In Jesus we see that his preaching was accompanied by healing/exorcisms. The two seem to go hand in hand. It was believed in that culture and in that time that physical sickness, malformations, etc. were the direct result of sin in one's life or in the life of one's parents (cf. John 9:2). So then, by healing those who were sick or possessed Jesus is teaching through actions. He is saying that these who in the eyes of the culture are "sinners" are now set free and forgiven. Again, part of the context here is Jesus' preaching.
Just as Jesus touched the leper we too must be willing to reach out and touch the untouchables. And this will involve not just words but actions, too. As David Garland points out in his commentary on Mark: "Humans are psychosomatic beings, healing involves mind, body, emotions, and spirit" (pg. 87). We see Jesus acknowledging this in His earthly ministry and we would do well by acknowledging it too.
When I preach or teach what do I see happening? Are people being healed? Also, are my actions matching up with my teaching and preaching? Again, with Jesus these things went hand in hand. He called the disciples to follow after Him and do likewise. What might this look like in our churches today?