christian community is an group of people intentionally:
a. sharing resources with each other and their neighbors (food, homes, money, abilities, etc.)
b. practicing spiritual disciplines together (prayer, singing, bible study, etc)
community is important because it:
a. refines us and exposes our sin and weaknesses (similar to marriage)
b. causes us to liver simpler and be more generous with our resources
c. breaks us out of our individualistic, isolated lives and mindsets (it is just more fun to share life with folks)