In ancient times, a "high priest" was simply a holder of the high (or Melchizedek) Priesthood, e.g. Alma 13:9. Later, during the time of the law of Moses, the "high priest" was the Aaronic priest who officiated and led the other Levitical priests. The Book of Mormon appears to extend this usage of "high priest" as the Priesthood holder who had responsibility over the people in an area (e.g. Alma 4:4, 30:20) In modern, post-Restoration usage, a "high priest" is someone ordained to the (moder