This was a huge point of controversy with my PO. I enjoyed using first names, but it was strongly discouraged. (Even a local needs about it I think) Then me and him disagreed about who could be called a brother or not. I argued that any unbaptz pub could be addressed as Bro or Sis. He argued only baptized members could be. I dunno, I liked inclusiveness.
Technically, if you're not going to call them Brother or Sister, you're supposed to say Mr or Mrs (or Ms). The argument in the KM went something like this:
If that person's unbelieving husband/wife came, how would they feel about you gettin' all familiar with their spouse by calling them by their first name?
But I never saw this done. They were always called by their first names or their full names.
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