chapter 7's conclusion, we see Here the issue with the first priesthood under the Law.
"If therefore perfection were by the Levitical priesthood, (for under it the people received the law,) what further need was there that another priest should rise after the order of Melchisedec, and not be called after the order of Aaron?
For the priesthood being changed, there is made of necessity a change also of the law. For he of whom these things are spoken pertaineth to another tribe, of which no man gave attendance at the altar. For it is evident that our Lord sprang out of Juda; of which tribe Moses spake nothing concerning priesthood. ( Judah was not given a priesthood in the levitical Law) And it is yet far more evident: for that after the similitude of Melchisedec there ariseth another priest, Who is made, not after the law of a carnal commandment, but after the power of an endless life.
( Now we are beginning to see things unfold as to why the writers have established so much regarding this first order of priesthood established before the levitical order ( sons of aaron) ordained of the Law of moses, by the law of Moses Long after the appearing of Melchezidek and patterned after His priesthood. we read Here that a change of the priesthood, makes a change of the Law they preside over, necassary. Jesus is not a priest of the Law of moses this is clear, and because it is also clear that He has become our High priest, this means that we are no longer under the Law of the order of levites. ) they continue this point.
"For he testifieth, Thou art a priest for ever after the order of Melchisedec.
For there is verily a disannulling of the commandment going before for the weakness and unprofitableness thereof. For the law made nothing perfect, but the bringing in of a better hope did; by the which we draw nigh unto God. And inasmuch as not without an oath he was made priest:
(For those priests were made without an oath; but this with an oath by him that said unto him, The Lord sware and will not repent, Thou art a priest for ever after the order of Melchisedec:)
By so much was Jesus made a surety of a better testament.
And they truly were many priests, because they were not suffered to continue by reason of death: But this man, because he continueth ever, hath an unchangeable priesthood. Wherefore he is able also to save them to the uttermost that come unto God by him, seeing he ever liveth to make intercession for them."
For such an high priest became us, who is holy, harmless, undefiled, separate from sinners, and made higher than the heavens; Who needeth not daily, as those high priests, to offer up sacrifice, first for his own sins, and then for the people's: for this he did once, when he offered up himself. For the law maketh men high priests which have infirmity; but the word of the oath, which was since the law, maketh the Son, who is consecrated for evermore.
they have really driven Home this point here, and its becoming clear that the priesthood of melchezidek is eternal. the Levites died, and the priesthood was passed to another. so aaron was High priest, and then He died. this made it impossible for Him to continue in His High priesthood, death the result of sin, made the Law unprofitable, carnal, and also temporary, because the priests who presided over the Law, were. we see also the levites were not made by Oath of God who swore by Himself, concerning Jesus " thou art a priest forever after the order of Melchezidek.
this is where His resurrection is highlighted regarding His priesthood. Because He lives forever, His priesthood is forever. because we have seen that the new priesthood neccesatates a new Law, we can then look back to the first two verses of the book of Hebrews and see that the prophets including Moses spoke in times past, the first covenant, and what was spoken through Jesus is the change of the Law that was necessatated By the changing of the priesthood. this is touched again much clearer later in this letter.
we see also His eternal intercession for those who abide in this new Law of the spirit of Life. rather than the Law of those who died and were discontinued by reason of thier death. Now remember " My words will never pass away" Those are the testament that Our High priest presides over, as the levites presided over and read every seven years, the law of the book of moses, thier ministry to those in the first testament.
in v 26-28 there, the writers are referring back to this from the Law
Leviticus 9:6-And Moses said, This is the thing which the LORD commanded that ye should do: and the glory of the LORD shall appear unto you. And Moses said unto Aaron, Go unto the altar, and offer thy sin offering, and thy burnt offering, and make an atonement for thyself, and for the people: and offer the offering of the people, and make an atonement for them; as the LORD commanded."
as you should read the entire chapter you will find aaron then does this, and all priests after also. He first offers His offering for His own sin, then for the priests, and then for the people He offers thier offerings. Only the High priest can do this. He is the Only allowed to enter in behind the veil where the Glory of the Lord appears above the mercy seat. He does this both daily, and then Once a year on the day of atonement when the sin of all the people is removed and sent away on the scapegoat.
Jesus Has done this for us, His blood was offered for the sins of all people, and because His Life is in that Blood He shed, the blood sacrifice is Once for all time, it always remains and does not need a re issuing or re shedding of the blood each day or even Once a year on the day of atonement, Because when He died on the cross, that is the fulfillment of the day of atonement pattern we see in the Law. those things in the Law, teach us what His sacrifice Meant. they were but a foreshadowing for us now, though they were the Law at the time they were given, For aarons priesthood within and presiding over the Law of Moses.
Because Jesus Lives forever, having shed His Blood and being Holy He is so much greater and profitable than the levitical priesthood of the Law. Jesus entered in behind the veil in Heaven before the reality of Gods presence, and He does not only enter Once a year, But resides there in Gods Presence forever. so when He intercedes for us, the power of His eternal Life, His blood shed for us testifies forever before God. " His blood speaks a better word of atonement"
because our covenant is paid for by His blood, presided over By His Priesthood, and established by His words all wich are eternal His words, His blood, and His priesthood. we begin to see what the covenant really is, and that it is completely established By Jesus Christ the Son of God eternal. we cannot displace His words, His blood, or His preisthood and still grasp the eternal covenant. this will become much clearer in the chapters to come... God bless you.