One of three offices in Hebrew Polity
kōhēn (H3548)
first is Melchizedek
Levi
Levites
Levitical Priests
Melchizedek was a priest and a King, Adonizedek was a successor, defeated by Joshua.
Joseph’s Egyptian father in law was of a priest of On
Jethro (Ex 3:1) was priest of Midian, and advised Moses.
Aaron inaugurates the (High) Priesthood
Zadok renews the aaronic line under Solomon’s temple
Joshua renews the zadokite/aaronic line under Zerubabbel.