Quote Originally Posted by Closet_Skeleton View Post
What is a high priest anyway? Is it equivalent to the Pope or just a regular bishop. Is it the highest priest of that deity or just in one temple or nation?

Literally it just means a rank above regular priest.

You might say that its been implied that they're the highest priest of a god, but we don't know if the northern gods are functionally just the Dwarven pantheon or if they're worshipped in multiple nations.
Essentially yes, it is equivalent to the Pope.

It doesn't mean, however, that the person has the most levels. It is certainly possible that the high priest gets so involved in church administration that some clerics outside of management have more levels as they're still leveling.