Theodoret of Cyrus, on Heb 7:11

“If then perfection was by the Levitical priesthood, (for under it the people received the law,) what further need was there that another priest should rise according to the order of Melchisedech, and not be called according to the order of Aaron?”

“If the priesthood according to the law contained perfection, he is saying, on the grounds that through it everything according to the law was fulfilled, why is the giving of another one intended? Why on earth is the promise made to give it not according to the order of Aaron but according to the order of Melchizedek? Actually, all the law's requirements were fulfilled in the former one: it offered sacrifices, it gave purification from defilement, through it the commandments about festivals were fulfilled, the text says, "for under it the people received the law."After thus demonstrating the change of priesthood, he shows also the cessation of the law. The law was liked to the priesthood; so with priesthood coming to an end, the law also suffered the same fate.”

Imported from an open dataset — not yet checked against the printed edition.