Hi and can not answer Heb 8:8 ??
Your other 2 verses are a OP all by them self !!
Do you want to start a post on them ??
dan p
Heb 8:8 teaches that Jesus is the mediator of the new covenant as Moses was the mediator of the old covenant.
Your point ?
Differences Between the New Covenant and the Old Covenant
1. They were instituted at different times. The Old Covenant around 1446 B.C., the New Covenant around 33 A.D..
2. They were instituted at different places. The Old Covenant at Mount Sinai, the New Covenant at Mount Zion.
3. They were spoken in different ways. The Old Covenant was thundered with fear and dread at Mount Sinai (Exodus 19:17-24). Jesus Christ, God the Son, declared the New Covenant with love and grace.
4. They are different in their mediators. Moses mediated the Old Covenant. Jesus is the mediator of the New Covenant.
5. They are different in their subject matter. The Old Covenant demanded a covenant of works. The New Covenant fulfills the covenant of works through the completed work of Jesus.
6. They are different in how they were dedicated. The Old Covenant was dedicated with the blood of animals sprinkled on the people (Exodus 24:5-8). The New Covenant was dedicated with Jesus' blood spiritually applied to His people.
7. They are different in their priests. The Old Covenant is represented by the priesthood of the Law of Moses and high priests descended from Aaron. The New Covenant has a priesthood of all believers and a High Priest according to the order of Melchizedek.
8. They are different in their sacrifices. The Old Covenant demanded endless repetition of imperfect sacrifices. The New Covenant provides a once and for all, perfect sacrifice of the Son of God Himself.
9. They are different in how and where they were written. The Old Covenant was written by God on tablets of stone. The New Covenant is written by God on the hearts of His people.
10. They are different in their goals. The goal of the Old Covenant was to discover sin, to condemn it, and to set a "fence" around it. The goal of the New Covenant is to declare the love, grace, and mercy of God, and to give repentance, remission of sin, and eternal life.
11. They are different in their practical effect on living. The Old Covenant ends in bondage (through no fault of its own). The New Covenant provides true liberty.
12. They are different in their giving of the Holy Spirit. Under the Old Covenant, God did grant the Holy Spirit, but not in the same way and extent that He is given to believer under the New Covenant.
13. They are different in their idea of the Kingdom of God. Under the Old Covenant, it is mainly seen as the supreme rule of Israel over the nations. Under the New Covenant, it is both a present spiritual reality and a coming literal fact.
14. They are different in their substance. The Old Covenant has vivid shadows. The New Covenant has the reality.
15. They are different in the extent of their administration. The Old Covenant was confined to the descendants of Abraham through Isaac and Jacob according to the flesh. The New Covenant is extended to all nations and races under heaven.
16. They are different in what they actually accomplish. The Old Covenant made nothing perfect. The New Covenant can and will bring in the perfection of God's people.
17. They are different in their duration. The Old Covenant was designed to be removed. The New Covenant was designed to last forever.
https://www.blueletterbible.org/Comm/guzik_david/StudyGuide_Hbr/Hbr_8.cfm?a=1141008
