John Chrysostom

"For it is not possible that the blood of bulls and of goats should take away sins."

So that their being many, and offered "continually," proves that they (the worshipers) were never made clean. For as a medicine, when it is powerful and productive of health, and able to remove the disease entirely, effects all after one application; as, therefore, if being once applied it accomplishes the whole, it proves its own strength in being no more applied, and this is its business, to be no more applied; whereas if it is applied continually, this is a plain proof of its not having strength.