Read only if you've forgotten certain terms
Spark of divinity - An energy source within the body. it's a thing that only those who have been recognized by the gods themselves are able to use. A spark of divinity's size is dependent entirely on a person's potential to bear the weight of divinity.
Divinity - A powerful ethereal substance.
Aspirant - A person who has been recognized by a god. They are quite common and are only blessed with a small amount of divinity. They're able to channel divinity through their spark and are able to summon anything from a fist sized rock to an entire boulder depending on their skill and physique.
Acolyte - A person who has been blessed directly by a god. They're much rarer then aspirants and are blessed with a sizable amount of divinity. Acolytes generally try to conserve their divinity when they can but they won't hesitate to use it to destroy entire armies or villages.
Exalted - A being more god then human. Exalted are those lucky enough to be chosen as a direct "prophet" for a god. Their sparks of divinity are obscenely large. If they wish so, they could split entire mountains and rivers.