Jesus gave the twelve power and authority to cast out demons and heal, then He sent them out to the villages. These would be the first missionaries. They took the gospel out to the people, the small villages where there may not be a synagogue. To people who for whatever reason could not go to the places where Jesus was. The gospel needs to be taken to the people, even today so many programs focus on bringing people to the church building and not on getting the messsage out.