IMHO, there are similarities concerning Paul and Moses that are very much worth looking into and which are insightful to say the least.
Regarding the 508 and 501(c)(3) it is worth noting that it is said that at Rome there was an organic ecclesia established ahead of the Church of Rome. Joseph of Arimathea is said to have been involved in the first. Similarly, the ecclesia established at Cornwall, etc. is said to be ahead of "the Church of England" unless the notion of them being the same or a continuance of the other holds water in any sense. The Church of England was founded in 1534. The ecclesia at Cornwall before 100AD. The conversion of Anglo-Saxon kings and of the Picts upon the British Isles by St. Patrick (not a Roman Catholic): to knowledge long before Roman Catholic missionaries and Augustine arrived.
It might be that behind the 508 and 501(c)(3) distinction is something to do with both extraterritoriality and systems (or machinations) for containing those who seem to who prefer delusions and being deceived over the truth.
On the other hand, maybe its to do with that what isn't Caesar's isn't Caesar's and Caesar knows this? As in those hard lessons Nebuchadnezzar learned long ago were perhaps passed down from generation to generation (internal memo).
Sure the ecclesia is "one" in a sense and someone can say that any church is a church and assert them all to be one however. However...("Riddle me this!")
...are corporate persons "of the living"?For he is not a God of the dead, but of the living: for all live unto him. Luke 20:38