Be hospitable to one another without complaining (1 Peter 4:9).
We human beings are an interesting lot. Like so many species in the animal kingdom, we are very territorial. In some instances that is probably not a bad thing, but when a certain kind of inhospitable territorialism infects the church, it undermines the gospel invitation to all persons.
One of the places where inhospitable territorialism can be seen most clearly is in worship on Sunday morning. Most folks enter the sanctuary for worship and sit in their same familiar place week after week. Some persons prefer the back, others the front, and others in between. I have been told that the reason people do this is that the more visually oriented persons like to sit in the back so they can see everything, while those who favor their listening faculty sit close to the front. The individuals who are more balanced sit in the middle.