You certainly do delight in being ignorant
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. Hebrews 7:11-12
Ignorance can be fixed, so here goes...
Heb 7:11 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?
Heb 7:12 For the priesthood being changed, there is made of necessity a change also of the law.
Heb 7:13
For he of whom these things are spoken pertaineth to another tribe, of which no man gave attendance at the altar.
Heb 7:14
For it is evident that our Lord sprang out of Juda; of which tribe Moses spake nothing concerning priesthood.
Here is the subject at hand, who can serve in the Priesthood...
Num 18:1 And the LORD said unto Aaron, Thou and thy sons and thy father's house with thee shall bear the iniquity of the sanctuary: and thou and thy sons with thee shall bear the iniquity of your priesthood.
Num 18:2 And thy brethren also of the tribe of Levi, the tribe of thy father, bring thou with thee, that they may be joined unto thee, and minister unto thee: but thou and thy sons with thee shall minister before the tabernacle of witness.
Num 18:3 And they shall keep thy charge, and the charge of all the tabernacle: only they shall not come nigh the vessels of the sanctuary and the altar, that neither they, nor ye also, die.
Num 18:4 And they shall be joined unto thee, and keep the charge of the tabernacle of the congregation, for all the service of the tabernacle: and a stranger shall not come nigh unto you.
The Priesthood was committed to the tribe of Levi and specifically the sons of Aaron. Priesthood had to do with DNA, if you were not a son fo Aaron, you could not serve in the Priesthood. This explains the following verses...
Heb 7:13 For he of whom these things are spoken pertaineth to another tribe, of which no man gave attendance at the altar.
Heb 7:14 For it is evident that our Lord sprang out of Juda; of which tribe Moses spake nothing concerning priesthood.
Heb 7:15 And it is yet far more evident: for that after the similitude of Melchisedec there ariseth another priest,
Heb 7:16 Who is made, not after the law of a carnal commandment, but after the power of an endless life.
Made after a fleshly (carnal means fleshly) commandment, the commandment that only those sons of Aaron could be Priests. This is why it is mentioned that Christ came form Judah, by DNA He was disqualified from being a Levitical Priest. So the Law had to change to allow Christ to be High Priest because Christ will not violate His Law. He won't violate the seemingly most insignificant point of His Law. After all, He is the one who gave the Law and then said...
Mat 5:18 For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.
He has not returned, He has not ruled for 1000 years and the GWTJ has not occured and New Jerusalem has not come down out of heaven. All is not fulfilled.
What was changed are the conditions concerning who can be a Priest. Now, if that law were not changed, I could not fulfill these scriptures...
Rev 5:10 And hast made us unto our God kings and priests: and we shall reign on the earth.
1Pe 2:5 Ye also, as lively stones, are built up a spiritual house, an holy priesthood, to offer up spiritual sacrifices, acceptable to God by Jesus Christ.
1Pe 2:9 But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light:
And unless you are of the tirbe of Levi, neither could you.