I really like this class here. What I would recommend though is a bit of flexibility in the trait. There are the sort of fire and brimstone priests, focused on charisma, but wisdom is also an archetype.
Perhaps let the Priest choose from the two when he begins his career which attribute he will focus on, which cannot be changed later? That will also keep paths open if he wants to multiclass Druid instead of another Charisma-based class down the road. Just a suggestion, but I think it would work.
Otherwise, well done. I can't wait for the Templar.