What do you call a co-worker these days? Neither teammate nor confederate will do, and partner is too legalistic. The answer brought from academia to the political world by Henry Kissinger and now bandied in the boardroom is colleague. It has a nice upper-egalitarian feel, related to the good fellowship of collegial.
I grew up in the church, and I always kind of knew Bible stories and knew the Sunday school answers, but when I was a freshman in high school I joined youth group, and that's when I started to see radical love; that's when I started to see what Christian community is supposed to look like and what fellowship is supposed to look like.