The gods hate mages. Upstarts who wield magic without reverence for the gods. So they refuse to allow their clerics to heal mages.
The dwarven gods true names can only be known by dwarves. They are referred to by nicknames in the presence of non-dwarves. I.E. Gudurran( Allfather) Baenna ( Hearthmother) Dudrak ( Ore), etc. No torture or magic or direct intent can reveal their true names to non-dwrves.
On a certain continent, nearly all kingdoms worship under the same pantheon. However, in the southern reaches the peoples take a much more...liberal stance on their Gods. Statues are nude, and very anatomically correct, and icons are often startlingly brazen. For instance, the icon of (insert name), the goddess of love, is an image of two nude twins embracing in a passionate kiss, signifying the love of both family and partner. This is a source of unending outrage and offense for the Northern churches, whose traditional and modest take on religion is constantly at odds with the near-blasphemous ideals of the Southerners. While this is not enough to provoke outright conflict, there is more than enough simmering discontent and long-held grudges between the two hemispheres.