IMO, the whole riddle of divine revelation can be explaned by the following:

Jaynes’ case for bicameralism
According to Jaynes ancient people in the bicameral state of mind would have experienced the world in a manner that has some similarities to that of a schizophrenic. Rather than making conscious evaluations in novel or unexpected situations, the person would hallucinate a voice or “god” giving admonitory advice or commands and obey without question: one would not be at all conscious of one’s own thought processes per se.

Al people claiming to hear God are schizophrenic.