Priesthood of Melchizedek
The priesthood of Melchizedek is a role in Abrahamic religions, modelled on Melchizedek, combining the dual position of king and priest.
Meeting of Abraham and Melchizedek – by Dieric Bouts the Elder, 1464–67
Kohen is the Hebrew word for "priest", used in reference to the Aaronic priesthood, also called Aaronites or Aaronides. They are traditionally believed and halakhically required to be of direct patrilineal descent from the biblical Aaron, brother of Moses, and thus belong to the Tribe of Levi.
The high priest in his golden garments (the chain censer depicted is anachronistic).
The priestly breastplate of the high priest.
Kohen, Kohen Gadol and a Levite (Charles Foster, 1873)
A group of kohanim studying the Mishnayot laws of Keilim in anticipation of the rebuilding of the Beit Hamikdash