I have no idea what any other religious spells are, so it's difficult for me to compare. That said, although the Zavijah spell seems fine I've often thought the ability to speak and understand (but not teach ... still gotta do the learning bit!) any language would suit a priest of knowledge and wisdom.
Also, if it's not too much to ask, I'd also like the following:
Code:
Omniscience
Syntax: cast 'omniscience'
The hapless Zavijan priest or priestess gains the ability to know ... everything.
No longer will the clergy of "knowledge" and "wisdom" be plagued with feelings
of inadequacy throughout the constant barrage of "Where should I train?"
(when you know not the asker, let alone their level or alignment) and
"Where can I train skill/spell X?" (when not only are not a member of that
profession but also you haven't played one in over 10 years and certainly can't
recall such details"). Griffons in the clergy will also now be able to answer all
the "Are they any good shields about?" or "Where can I get a decent dagger?"
requests, despite not being able wear or wield such an item and hence never
having sought them out to know where they may be found.