"'But the Levitical priests, the sons of Zadok, who performed the duty of my sanctuary when the children of Israel went astray from me, they shall come near to me to minister to me; and they shall stand before me to offer to me the fat and the blood, says the Lord GOD:

Now if there was perfection through the Levitical priesthood (for under it the people have received the law), what further need was there for another priest to arise after the order of Melchizedek, and not be called after the order of Aaron?