Hierophant

[from Greek hieros, “powerful, supernatural, holy, sacred” + phantes, from phainein, “to bring to light, reveal, show, make known”] In antiquity, an official expounder of sacred mysteries or religious ceremonies, especially in ancient Greece.

Serapis Bey is often spoken of as the hierophant of Luxor.

Sources

Mark L. Prophet and Elizabeth Clare Prophet, Lost Teachings of Jesus: Missing Texts • Karma and Reincarnation, p. 264.