Hebrews 7:11

Verse 11. If therefore perfection were by the Levitical priesthood. As the Jews supposed. They were accustomed to regard the system as perfect, It was an appointment of God, and they were tenacious of the opinion that it was to be permanent, and that it needed no change. But Paul says that this could not be. Even from their own Scriptures it was apparent that a priest was to arise of another order, and of a more permanent character; and this, he says, was full proof that there was defect of some kind in the previous order.