What we do is assume each spell comes from the deity of the cleric who casts the spell, or whose deity enchanted the item giving the resurrection. Upon the spell being cast, the resurrectee is given a choice--either convert to be a devout follower of the God, or agree to one mission for the God, time place and nature of the mission unknown, and enforced by a gaes spell.
If it's an item, it leads to interesting complications if the resurrection came from an evil god. :)
We don't do level/XP or Con penalties.