Jesus gathered his disciples and gave them authority to minister / serve people at their point of need. As they went out he instructed them:

1. give as freely to their needs as you were freely give the power to cleanse, deliver, heal and preach.
2. serve with worthy people, people of peace.
3. Bless those that receive you with peace and greetings.
4. Remove yourself from unpeaceful and unworthy communities.

Matthew 10:1