However, although the Book of Mormon are supposed to have been Hebrews, they were descendants of the tribe of Joseph (1 Nephi 5:17) or Manasseh (Alma 10:3), not the tribe of Levi and family line of Aaron, as the Law of Moses dictates (Numbers 3:10; Exodus 29:9; Numbers 18:1-7), so they would not have had a legitimate priesthood. Further, according to the Book of Mormon, there were many high priests serving at the same time (Mosiah 11:11; Alma 13:9-10; 46:6,38; Helaman 3:25) in the New World, among those it describes as Jewish immigrants from ancient Israel who "kept the law of Moses" (e.g., 2 Nephi 25:10; Jacob 4:5; Jarom 1:5). In contrast, it is clear from the Bible that only one individual at a time occupied the office of high priest under the Old Testament dispensation (see, for example Leviticus 21:10; Matthew 26:3; Hebrews 8:6-7). (The mention in Luke 3:2 of "Annas and Caiaphas being the high priests" is not a real exception -- in Christ’s time Israel was under the domination of the Romans, who intervened to change the high priest at will. That is, this office became a kind of "political football," rather than following the appointment process dictated in the Law of Moses. See John 18:13, which describes Annas as "father-in-law to Caiaphas, which was the high priest that same year.") The people described in the Book of Mormon operated multiple temples (Alma 16:13; 23:2; 26:29). This violates the dictates of the Old Testament Scriptures on two counts: First, ...