That's what I mean, though - I'm reminded very much of early Christianity and Islam. At some point, a temporal institution having to interpret scripture without the same level of spiritual authority, except for what they claimed.
I guess that's why any such institution will tend to have greatest animosity for those nearest to themselves - because they are in a more direct position to challenge it.
Reminds me of a joke once posted on CR:
It seems that a man was about to commit suicide by jumping from a high bridge, when a second man ran up to him shouting, "Stop! Stop! Don't do it!"
"But I have nothing to live for," said the first man.
"Maybe I can help you," said the second man. "Are you religious?"
"Yes, I am," said the first man.
"Me too!" said the second man. "Are you Christian, Jewish, or Moslem?"
"I'm Christian," said the first man.
"Me too!" said the second man. "Are you Protestant or Catholic?"
"I'm a Protestant," said the first man.
"Me too!" said the second man. "Are you Calvinist or Wesleyan?"
"Calvinist," said the first man.
"Me too!" said the second man. "Are you liberal or conservative?"
"Conservative," said the first man.
"Me too!" said the second man. "Evangelical or Fundamentalist?"
"Evangelical," said the first man.
"Me too!" said the second man. "Charismatic, Reformed, or Baptist?"
"Baptist," said the first man.
"Me too!" said the second man. "General Baptist, Conference Baptist, or Northern Baptist?"
"Conference Baptist," said the first man.
"Me too!" said the second man excitedly. "Conference Baptist of the 1932 Conference, or Conference Baptist of the 1946 Conference?"
"Conference Baptist of the 1932 Conference!" said the first man.
"1932??? Then die, infidel heretic scum!" And the second man pushed the first man off the bridge.
-Author unknown