In verses 1-6, the Hebrew writer explained the “main point” of the things discussed in chapter 7 concerning Jesus’ High Priesthood. In verse 6, he explained that “He has obtained a more excellent ministry, inasmuch as He is also Mediator of a better covenant, which was established on better promises.” The given text explained how the new covenant is better.
Once again, as in 7:18-19, the imperfection of the first covenant was noted. It was not imperfect in its design, but in what it could not do for those with whom God finds fault. Thus, a new covenant was necessary. “New,” not only in the matter of time, but also in substance.
The writer described the new covenant by quoting from Jeremiah 31:31-34. The new covenant would not be the same as that which was given after the exodus (cf. Exodus 20). The Israelites failed to keep the covenant – God found fault with them. Since that covenant could not expiate, their sins could not be forgiven under it. A new covenant was necessary. Instead of on tablets of stone, the new covenant would be one written on the heart. Not in the sense that there would be no written law, but that it would be one which required, and had the power to accomplish, a change in the inner man – “You must be born again” (John 3:7). There is a transformation of the mind in conformity with God’s will (cf. Romans 12:1-2). There will not be a member of this covenant who cannot, or does not know God. We know Him when we are born of Him, and keep His commandments (cf. 1 John 2:3-6, 28-29). This greatest of relationships man will ever know is made possible by the gap bridged via God’s forgiveness (v. 12). Our sins separated us from Him (cf. Isaiah 59:1-2). However, upon repentance and obedience to His Gospel He forgives.
Such a new and wonderful covenant makes the old, in which fault was found, “obsolete.” It has served its purpose, and it is not binding anymore.