For they are Israelites, and theirs are the adoption as Sons, the visible Presence, the Covenants, the revealed Law, the Temple worship, and the Promises.
If, then, Perfection had been attainable through the Levitical priesthood--and it was under this priesthood that the people received the Law--why was it still necessary that a priest of a different order should appear, a priest of the order of Melchizedek and not of the order of Aaron?