The priesthood of Melchizedek is a role in Abrahamic religions, modelled on Melchizedek, combining the dual position of king and priest.[1]
^Israel's Messiah in the Bible and the Dead Sea Scrolls – Richard S. Hess, M. Daniel Carroll, (2003), page 67: "However, many monarchs of the ancient Near East did participate in the cult to a degree that certainly exceeded the term. ...David clearly is connected to the priesthood, although it is the priesthood of Melchizedek rather than the priesthood of ..."