2 Bible Verses about Priesthood, In Ot

For God Himself addresses Him as a High Priest for ever, belonging to the order of Melchizedek.

Now if the crowning blessing was attainable by means of the Levitical priesthood--for as resting on this foundation the people received the Law, to which they are still subject-- what further need was there for a Priest of a different kind to be raised up belonging to the order of Melchizedek instead of being said to belong to the order of Aaron? For when the priesthood changes, a change of Law also of necessity takes place. He, however, to whom that prophecy refers is associated with a different tribe, not one member of which has anything to do with the altar.read more.
For it is undeniable that our Lord sprang from Judah, a tribe of which Moses said nothing in connection with priests. And this is still more abundantly clear when we read that it is as belonging to the order of Melchizedek that a priest of a different kind is to arise, and hold His office not in obedience to any temporary Law, but by virtue of an indestructible Life. For the words are in evidence, "Thou art a priest for ever, belonging to the order of Melchizedek."