Gothic 3 Missing magic spells?

I have not found a trainer of any of the following spells:

Strengthen
Bless Weapon
Meteor
World of Dominance

Ice Explosion
Open Locks
Time Bubble
Hailstorm

Night to Day
Summon Lightning
Army of Darkness

They are divine spells, only granted once you are truly devoted to that god and can't use the other shrines at all. This happens as part of the main quest, when you have to choose a god.