But the NT reveals that the Mosaic Covenant is obsolete (Hebrews 8:13),
Where in the world did you get that translation? It contradicts scripture.
(CLV) Hb 8:13
In saying "new," He has made the former old. Now that which is growing old and decrepit is near its disappearance.
The Greek word being used here is "Kainos" which means renewed, or refreshed, not "Neos" which means brand new.
(CLV) Hb 8:8
For, blaming them, He is saying, "Lo! the days are coming," the Lord is saying, "And I shall be concluding with the house of Israel and with the house of Judah a new (Renewed
Kainos) covenant,
The author of Hebrews is quoting Jeremiah 31:31.
(CLV) Jer 31:31
Behold, the days are coming, averring is Yahweh, when I will contract a new (
Chadash) covenant with the house of Israel and »the house of Judah.
According to The TWOT, the Hebrew word chadash means “to repair, rebuild or renew.”
The translators of the Septuagint used the Greek word kainos for the Hebrew chadash, for Jerermiah 31:31.
YHWH did not nullify his covenant with Moses, David, and the prophets. Those who are obedient to the Father's will will se them in due time.
He renewed his covenant with Israel, who broke his covenant. This time he wrote his laws where they are not so easy to ignore.
that the Aaronic (Levitical) priesthood is ended, being replaced
The Aaronic Priesthood is different than the Levitical Priesthood.
(CLV) Jer 33:18
As for the Levitical priests there shall not be cut off a man from before Me who offers up the ascent offering and fumes the approach present and offers sacrifices for all the days.
(CLV) Jer 33:20
Thus says Yahweh: If you could annul My covenant with the day and My covenant with the night so that daytime and night fail to come about in their proper time,
(CLV) Jer 33:21
then also My covenant could be annulled with David My servant, so that he should not come to have a son reigning on his throne, and that with the Levites, the priests, My ministers.
priesthood is ended, being replaced with eternal order of Melchizedek, and
that the law is changed (
Hebrews 7:12)
YHWH's Torah, instruction, direction, is a reflection of his nature. YHWH doesn't change, therefore neither does his reflection.
(CLV) Hb 7:11
If, indeed, then, perfection were through the Levitical priesthood (for the people have been placed under law with it), what need is there still for a different priest to arise according to the order of Melchizedek, and not said to be according to the order of Aaron?
(CLV) Hb 7:12
For, the priesthood being transferred, of necessity there is coming to be a transference of law also,
The operative word here is "transferred," not "changed."
Of course the law applicable to the Kohen Gadol would follow the Kohen Gadol.
its commandments and regulations being
abolished on the cross (
Ephesians 2:15).
(CLV) Eph 2:15
(the enmity in His flesh), nullifying the law of precepts in decrees (
δογμασιν DOGMA), that He should be creating the two, in Himself, into one new humanity, making peace;
What was nullified was the man made law of the imposters posing as the temple "Priests."
For example, see the preceding verse:
(CLV) Eph 2:14
For He is our Peace, Who makes both one, and razes the
central wall of the barrier
Can you show me where, in the Torah, YHWH ordered such a barrier?
Paul is not contradicting Yahshua.
He makes it clear here:
(CLV) Ro 3:31
Are we, then, nullifying law through faith? May it not be coming to that! Nay, we are sustaining law.
If you still believe that he is; and that he's schizophrenic; then you should ignore him; and follow your Messiah.
(CLV) Mt 5:18
For verily, I am saying to you, Till heaven and earth should be passing by, one iota or one serif may by no means be passing by from the law till all should be occurring.
(CLV) Mt 5:19
"Whosoever, then, should be annulling one of the least of these precepts, and should be teaching men thus, the least in the kingdom of the heavens shall he be called. Yet whoever should be doing and teaching them, he shall be called great in the kingdom of the heavens.
(CLV) Mt 5:20
For I am saying to you that, if ever your righteousness (keeping the law) should not be superabounding more than that of the scribes and Pharisees, by no means may you be entering into the kingdom of the heavens.