Over the last few weeks, I have been discussing with some friends about churches maintaining relationships between and among other groups of believers. This applies to those who move to different places, as well as to groups of believers in the same geographical area. The NT indicates that the early churches maintained relationships between themselves. Even though each church considered itself the body of Christ, they also realized that they were part of a larger group. Somehow they maintained fellowship with different groups.
How did they do this? What keeps us from building and maintaining relationships between different groups of believers – even groups with very similar doctrine?