“If he will not listen to THE church, treat him as a pagan or tax collector.” —Jesus
Jesus could only be speaking of His Church, THE Church.
Churches, and religions in general, are distinguished by doctrine and practice.
This church would have to possess a non-contradictory body of doctrine for its decisions to be universally applicable.
It would have to be visible. It’s impossible for an invisible church to adjudicate disputes.
Roman Catholicism.