Strictly speaking, you're right on all accounts.
We don't need a Priesthood to get by. Those who join choose to enter into the hierarchy of the Church.
We also don't have a community. Since you ask for a passage to read, how about High Priest Gilmore's Myth of the Satanic Community, found on the CoS homepage?
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"The devil I'll bring you," answered Hagen. "I have enough to carry with my shield and breastplate; my helm is bright, the sword is in my hand, therefore I bring you naught."