Here are all the spells,
http://elzee.co.nz/spells/index.html however there aren't any descriptions on what they do
Cleric Spells
God's Wrath - Good attacking spell
Casts Lightning697
Devine - I don't know yet
Casts Full magic map, shows projectiles, items, etc.4197
Holy Light - Changes day into night, and gives you night vision
4397
Heal - Never used by me
Heals you415
Insulate - Never used by me
Protects against electric damage589
Harden Self - I used this to kill Exiguus, seems good
I don't know what protection you get (it affects how much magic damage you take?)389
Resist Gravity - Useful if you want to jump a lot higher. With the ring of jumping it works wonders
213
Holy Water - Maybe it's a healing water. Never used
Spawns a potion of water, doesn't heal837
Holy Strength
Increases damage219
Wolf Speed
Speeds you up incl. weapon speed432
Holy Bread
Spawns bread to eat817
Life Water
Spawns a healing potion85
Glow
Night vision37
Eagle Sight
Increases weapon accuracy437
Earth Bind - I can't figure this out
Makes flying enemies unable to fly, VERY useful against the dragons at the end of the game.637
Identify - Used to identify worn items. You can put any item in your weapon slot, use this slot and examine name of potions, scrolls etc
47
Blood Shield
Poison protection52
Magic Map - You can buy a Ring of Mapping after the Exiguus Quest. Just a magic map. Useful ability
17
Repel
Pushes enemies away43
Attract - Use it to force some monsters into lava. It pulls them towards you
23
Cast of Sand
It's 612, and you can walk across slippery floors613Knock - Very useful. Use it to open magically locked doors. Usually they're not needed to finish quest, so you can find very good items instead
42
Confuse
Turns enemies around, really fun in multiplayer.25
Earthsmite
Priest's magic missile12
Resist Impact
stops falling damage81
Rejuvinate - The most useful Cleric spell. Heals you
45