Hebrews 8King James Version
Christ is mediator of a better covenant. The new covenant: I will put my laws into their mind, and write them in their hearts. They shall all know me, from the least to the greatest. Quoting Jeremiah 31.
The argument reaches its summary point: we have such a high priest, seated at the right hand of the Majesty in heaven, serving in the true tabernacle that the Lord pitched, not man. The earthly tabernacle was always a copy and shadow of the heavenly reality. Accordingly, Christ's ministry is more excellent, built on better promises. The author then quotes Jeremiah 31 at length: God himself announced a new covenant was coming, one written on hearts rather than stone, granting direct knowledge of God and full forgiveness. The existence of a new covenant makes the first one old.
The earthly tabernacle was always a sketch of the real sanctuary in heaven, and the new covenant announced by Jeremiah was always God's declared intent to replace what the old one could not accomplish.
8:10: "For this is the covenant that I will make with the house of Israel after those days, saith the Lord; I will put my laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to me a people": the new covenant relocates the law from external tablet to internal transformation.
The tabernacle detailed in Exodus was built to precise specifications because it was a copy of something real. Every piece of furniture, every measurement, was a symbol pointing at the actual sanctuary where Christ now ministers. The readers who know Exodus hear this and realize they have been treating the copy as if it were the original.
Moses, whose instructions for the tabernacle came with an urgent command to follow the heavenly pattern exactly, confirming that the earthly was always subordinate to the heavenly. Jeremiah, speaking centuries after Moses, announcing that the first covenant's inadequacy was never a surprise to God.
Chapter 8 deploys Israel's own prophetic tradition against the argument for returning to Judaism. Jeremiah 31 was written to Jews, not Gentiles, and it declared from within the old covenant that something better was already promised. The author's argument is that his Jewish Christian readers, by staying with Christ, are not abandoning their heritage: they are fulfilling it. The old covenant called its own replacement.
The Jeremiah quotation lands differently when you know it was written to people in exile who watched the temple burn. God's answer to covenant failure is not stricter law but a different kind of law entirely, one that cannot be left behind in a destroyed building.
1Now of the things which we have spoken this is the sum: We have such an high priest, who is set on the right hand of the throne of the Majesty in the heavens;
2A minister of the sanctuary, and of the true tabernacle, which the Lord pitched, and not man.
3For every high priest is ordained to offer gifts and sacrifices: wherefore it is of necessity that this man have somewhat also to offer.
4For if he were on earth, he should not be a priest, seeing that there are priests that offer gifts according to the law:
5Who serve unto the example and shadow of heavenly things, as Moses was admonished of God when he was about to make the tabernacle: for, See, saith he, that thou make all things according to the pattern shewed to thee in the mount.
6But now hath he obtained a more excellent ministry, by how much also he is the mediator of a better covenant, which was established upon better promises.
7For if that first covenant had been faultless, then should no place have been sought for the second.
8For finding fault with them, he saith, Behold, the days come, saith the Lord, when I will make a new covenant with the house of Israel and with the house of Judah:
9Not according to the covenant that I made with their fathers in the day when I took them by the hand to lead them out of the land of Egypt; because they continued not in my covenant, and I regarded them not, saith the Lord.
10For this is the covenant that I will make with the house of Israel after those days, saith the Lord; I will put my laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to me a people:
11And they shall not teach every man his neighbour, and every man his brother, saying, Know the Lord: for all shall know me, from the least to the greatest.
12For I will be merciful to their unrighteousness, and their sins and their iniquities will I remember no more.
13In that he saith, A new covenant, he hath made the first old. Now that which decayeth and waxeth old is ready to vanish away.