My point is there is not a one-to-one correspondence between what those words mean today vs what they meant back then in the first century. Words like: church, catholic, bishop, elder, deacon, pastor, presbyter, saint, apostle, etc. All these words have developed and evolved their own meanings and now have all manner of cultural, societal, and traditional baggage attached to them that was not present originally.
For example, the word "catholic" itself is automatically identified with the Roman Catholic Church, when there originally was no such association, and the word was simply used to identify the *invisible* church universal---not a single hierarchical top-down centrally localized institution---but all churches/assemblies/communities of believers established throughout the Roman empire that were born of the Spirit.
The whole organized, institutionalized religion that Christianity has become gravely misses the mark compared to the original first century understanding of the one and only Church of Jesus Christ as less a physical, natural entity vs born of the Spirit. The true Church is not some man-made building or institution, but consists of "living stones" of true believers born of the Spirit and united into one Body of Christ by the one same Spirit.
Simply being a member of a Protestant, or Orthodox, or Catholic Church (even a member who has gone through confirmation and observes the sacraments) does NOT guarantee that you are born of the Spirit and belong to the one true universal Church of Christ.