I Will Write on Their Hearts
7 For if that first covenant had been faultless, then no place would have been sought for a second. 8 For finding fault with them, he said, “Behold, the days are coming”, says the Lord, “that I will make a new covenant with the house of Israel and with the house of Judah; 9 not according to the covenant that I made with their fathers in the day that I took them by the hand to lead them out of the land of Egypt; for they didn’t continue in my covenant, and I disregarded them,” says the Lord. 10 “For this is the covenant that I will make with the house of Israel after those days,” says the Lord: “I will put my laws into their mind; I will also write them on their heart. I will be their God, and they will be my people. 11 They will not teach every man his fellow citizen and every man his brother, saying, ‘Know the Lord,’ for all will know me, from their least to their greatest. 12 For I will be merciful to their unrighteousness. I will remember their sins and lawless deeds no more.” 13 In that he says, “A new covenant”, he has made the first obsolete. But that which is becoming obsolete and grows aged is near to vanishing away.
The fault found is with the people rather than the covenant, and the new arrangement moves the law from tablets to the inside of a person.
For if that first covenant had been faultless, then no place would have been sought for a second.
The argument runs on the book's established logic: the announcement of a successor is the verdict on the incumbent Hebrews 4:8 Hebrews 7:11. Jeremiah promised a new covenant while the first was in force, and the promise itself is the evidence that something was wanting.
But verse 8 locates the fault with precision, and not where the sentence seemed headed: for finding fault with them, he said... — with them, the people, not with it. And the quotation confirms the placement: the new covenant will not be like the old one, for they didn't continue in my covenant. The old arrangement failed at its human end. Its terms were righteous; its signatories did not keep them, and a covenant kept by neither party protects no one.
What follows is the longest Old Testament quotation in the New Testament, and its center is a change of address for the law: I will put my laws into their mind; I will also write them on their heart.
The laws are not replaced — they are relocated. The same word the first covenant chiseled onto stone Hebrews 9:4 is written onto the person, which answers the exact failure just named. People did not continue in a covenant that stood outside them; a law written within is one whose keeping is no longer a matter of consulting something external. The covenant formula follows unchanged — I will be their God, and they will be my people — because the goal never moved. Only the means did.
Two consequences are then promised. Knowledge stops being secondhand: all will know me, from their least to their greatest — the verb of acquaintance, not information, the very thing the wilderness generation lacked Hebrews 3:10.
And the ground of it all comes last, as the quotation's floor: for I will be merciful to their unrighteousness. I will remember their sins and lawless deeds no more. Forgetting, ascribed to God, is not a lapse of memory but a decision about the ledger — the same clause the writer will quote again as proof that no further offering exists Hebrews 10:17–18.
Verse 13 closes with the writer's one comment: in that he says, "A new covenant", he has made the first obsolete. The single word new did the work. And the present-tense ending — that which is becoming obsolete and grows aged is near to vanishing away — describes something aging but still standing, which fits a letter written while the old service still ran Hebrews 10:11.
settled What this mark means