This might encourage the populace to support you. You might gain armaments to protect your holy church. Your beliefs and teachings become so popular it incites a holy war. Again, there are no limitations. Skill based, however you will not be able to determine exactly what your skill level is, only basic guidelines will be given, i.e. poor, good, etc.
All skills are available to all.
You might learn the skills of Baking from a baker but on the side be learning the skills of a Master Swordsman. There are no limits on what you can learn. However, skills ignored, will in time, be lost to the player.