Framing: Paul's trifecta of identity, unity, and false doctrine

• How do we practically decide where to unify with other denominations and where we must hold our ground?

Ben frames the question through Paul's letters: Paul cares that identity is on Christ alone (no "Jesus plus," e.g. being dragged back into Judaism), that the church stays unified, and that false doctrine is kept out. Paul's examples: once circumcision is agreed not to matter, do it or not; meat sacrificed to Zeus or Baal is fine if it doesn't cause trouble.