Hebrews 9:6

He measured its length, twenty cubits, and the width, twenty cubits, before the nave; and he said to me, “This is the Holy of Holies.”

who are Israelites, to whom belongs the adoption as sons, and the glory and the covenants and the giving of the Law and the temple service and the promises,

Now if perfection was through the Levitical priesthood (for on the basis of it the people received the Law), what further need was there for another priest to arise according to the order of Melchizedek, and not be designated according to the order of Aaron?