What is a Jewish priest, what is a Christian priest, and is the priest among Christians the one who receives revelation from God?

A soothsayer (kahin) is one who claims to know unseen matters, and soothsaying (kahana) is the term for the soothsayer's act. It may also refer to someone who practices a precise science, which is why religious figures among Jews and Christians are called "men of the priesthood (kahana)."