A number of sources (Jewish and otherwise) on community. Good texts to use in helping a team think intentionally about the meaning of community.

1. “By definition, a community is a collectionof people (or animals) who
interact with one another in the same environment. Community
exists everywhere in nature. From people to penguins from monkeys
to meerkats, the vast majority of organisms exhibit some form of
collective grouping. Grouping, however, is a touch simplistic as a
means to describe community. It is not merely the group that
generates community, but the interactions within it. These
interactions, and the feeling of belonging that they produce,are
generated from a distinctive kind of economy:a socialeconomy.”
Bacon, Jono. The Art of Community, Building the New Age of
Participation. Second Edition, p. 5

2. According to Martin Buber, an essential building block of community
is the conceptof dialogue. People oftenthink of dialogue as merely
script, or an exchange of words. Martin Buber has presented dialogue
as being much more than the exchange of messagesand talk that
takes place in human interaction. He describesgenuine dialogue as
"…no matter whether spokenor silent…where each of the
participants really has in mind the other or others in their present and
particular being and turns to them with the intention of establishing a
living mutual relation between himself and them." (Arnett, p.6, 1986).

3. Maimonides writes in his Introductionto the Mishnah: "A man will not
search for truth nor seek to do what is good when he goes off into
exile or is hungry, or is fleeing from his enemies." In other words,
certain social conditions must be satisfied if a personis to rise to his
propermoral stature; only if these basic needs are fulfilled can a
personbehave virtuously, and these cannot be provide by the
individual, but only by society. – MyJewishLearning.com

4. An audience isn’t just a big community; it can be more anonymous,
with fewer ties among users.
A community isn’t just a small audience either; it has a social density
that audiences lack.
– Clay Shirky, Here Comes Everybody.
“The real beginning of community is when its members have a
commonrelation to the center overriding all other relations: the circle
is described by the radii, not by the points along its circumference.”
—Martin Buber, Paths in Utopia
When we draw more people into a collaborative relationship to
responsibilityand leadership, and help an individual step back from
what amounts to overwork on our behalf, we openourselves to a
healthy and much needed conversationabout what constitutes our
commoncenter.
—Rabbi/Cantor Anne Heath
Successfulcommunities will recognize the multiple entryways in
which individuals develop connections to the larger community and
work to fosterrelationships that deepen,strengthen, and cross those
lines.
—Rabbi Eric Cohen
(last 3 quotes from October 2012 Sh’ma: A Journal of Jewish Ideas)

5. Whereas physical capital refers to physical objects and human capital
refers to the properties of individuals, social capital refers to
connections among individuals – social networks and the norms of
reciprocityand trustworthiness that arise from them. In that sense
social capital is closelyrelated to what some have called “civic virtue.”
The difference is that “socialcapital” calls attention to the fact that
civic virtue is most powerfulwhen embedded in a sense network of
reciprocalsocial relations. A societyof many virtuous but isolated
individuals is not necessarily rich in social capital.
Putnam, Bowling Alone, 2000:p. 19

6. The idea of being part of a “community” of forty-five thousand calls
into question what “community” means. If it signifies real relationships
among people who know one another well enough to share some
trust and understanding, then tens of thousands of people cannot
form a community. In any large organization, people’s sense of
loyalty, connection, and identification comes from being part of a
smaller team or group who spend enough time together to know and
be known to one another. Joining a small group is the first, essential
step in being part of a megachurch rather than just attending it. In his
book on the phenomenon of very large churches, Lyle Schaller notes,
“Most very large congregations affirm the fact that they are a
congregation of congregations, of choirs, circles, cells, classes,
fellowships, groups and organizations or a congregation of
communities.” And in an article in the Atlantic Monthly, Charles
Trueheart cites Jim Mellado of Willow Creek on the importance of lay-
led “cells” of up to ten people, the small-group cell being “the basic
unit of church life.” The same is true at Saddleback. Warren writes,
“People are not looking for a friendly church as much as they are
looking for friends.” He adds, “The average church member knows 67
people in the congregation, whether the church has 200 or 2000
attending. A member does not have to know everyone in the church
in order to feel like it’s their church, but he or she does have to know
some people.”
Putnam, R. and L. Feldstein.(2003).SaddlebackChurch: From
Crowd to Congregation.In Better Together:Restoringthe American
Community (119-141).New York: Simon & Schuster.