The positing of a purely spiritual church does not work. Without a visible teaching church there is no way to know what is Scripture in the first place. Nor is it how the the early church operated. There were bishops from the beginning.
Try to reads for comprehension, not to add your learned twist. I did not say there is ONLY the spiritual Chruch. I have told you over and over that the ONE True Church is the Spiritual Church that is The Body of Christ, made up of ALL who believe He is Their Messiah and Lord. There are lots of human institutional churches, and tens of thousands of denominations of same. Catholicism is not one institution, it is fractured into many institutional gatherings. YOU conflate the spiritual with the physical every chance you get, making your posts nonsense sometimes.