Need some information on Cleric class

Hi! I am new to Mordheim, and I'll participate in LARP game soon which happens in this universe. I've choiced the Cleric class, and I'll be able to chant divine spells and make rithuals. I want to roleplay better, so can anyone recommend me where to read more info on related lore/gods, which would be suitable for Cleric class? Like, does Clerics do anything in this universe - like, promoting gods, if so - which ones? I want to be able to talk on topic, and use correct gods names and stay closer to lore - anything you can recommend to prepare for my cleric class better?

Unfortunately, I have only 1 week left, so I do not have time to read though everything properly, that is why I need some advice to narrow myself to essentials.

While I'm not an expert on it myself I think the closest and simplest variant you will find is a warrior priest of Sigmar. The ones in Warhammer Fantasy are perhaps a bit more like paladins in appearance but have a look at the one that comes with the Mordheim witch hunters warband:


You can read up on it here and see if it rings well with you. It's pretty short but should contain the essentials, plus you can click yourself further to read about the church itself, the gods and stuff.

http://warhammerfantasy.wikia.com/wiki/Warrior_Priest_of_Sigmar

Thank you!