The Messenger's ﷺ greatness is expressed centrally through servanthood and messengership. He is human, Allah's chosen Messenger, and his guidance must be followed.
Prophethood is granted by Allah; it is not acquired merely through discipline or personal effort. Prophets receive special divine protection in conveying religion.
Allah's knowledge is intrinsic and unrestricted; information concerning the unseen given to the Messenger ﷺ comes through divine bestowal and revelation. Bestowed knowledge must not be equated with divine knowledge.