The Meaning of Hebrews 8:8 Explained

Hebrews 8:8

KJV: For 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:

YLT: For finding fault, He saith to them, 'Lo, days come, saith the Lord, and I will complete with the house of Israel, and with the house of Judah, a new covenant,

Darby: For finding fault, he says to them, Behold, days come, saith the Lord, and I will consummate a new covenant as regards the house of Israel, and as regards the house of Juda;

ASV: For finding fault with them, he saith, Behold, the days come, saith the Lord, That I will make a new covenant with the house of Israel and with the house of Judah;

KJV Reverse Interlinear

For  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: 

What does Hebrews 8:8 Mean?

Study Notes

Covenant
I. The Eight Covenants, Summary:
(1) The Edenic Covenant conditioned the life of man in innocency.
(2) The Adamic Covenant conditions the life of fallen man and gives promise of a Redeemer.
(3) The Noahic Covenant . establishes the principle of human government.
(4) The Abrahamic Covenant founds the nation of Israel, and confirms, with specific additions, the Adamic promise of redemption.
(5) The Mosaic Covenant . condemns all men, "for that all have sinned."
(6) The Palestinian Covenant secures the final restoration and conversion of Israel.
(7) The Davidic Covenant establishes the perpetuity of the Davidic family (fulfilled in Christ), Matthew 1:1 ; Luke 1:31-33 ,; Romans 1:3 and of the Davidic kingdom, over Israel, and over the whole earth; to be fulfilled in and by Christ; 2 Samuel 7:8-17 ; Psalms 89:20-37 ; Luke 1:31-33 ; Acts 15:14-17 ; 1 Corinthians 15:24 .
(8) The New covenant rests upon the sacrifice of Christ, and secures the eternal blessedness, under the Abrahamic Covenant Galatians 3:13-29 of all who believe. It is absolutely unconditional, and, since no responsibility is by it committed to man, it is final and irreversible.
II. The relation of Christ to the eight covenants is as follows:
(1) To the Edenic Covenant, Christ, as the "second Man," the "last Adam" 1 Corinthians 15:45-47 takes the place over all things which the first Adam lost; Colossians 2:10 ; Hebrews 2:7-8 .
(2) He is the "Seed of the woman" of the Adamic Covenant Genesis 3:15 ; Jeremiah 23:5-8 ; 1 John 3:8 ; Galatians 4:4 ; Revelation 20:10 and fulfilled its conditions of toil Mark 6:3 and obedience.
(3) As the greatest son of Shem, in Him was fulfilled supremely the promise to Shem in the Noahic Covenant. Colossians 2:9 .
(4) He is the "Seed to whom the promises were made" in the Abrahamic Covenant; the son of Abraham obedient unto death Genesis 22:18 ; Galatians 3:16 ; Philippians 2:8 .
(5) He lived sinlessly under the Mosaic covenant and bore for us its curse. Galatians 3:10-13 .
(6) He lived obediently as a Jew in the land under the Palestinian Covenant, and will yet perform it gracious promises Deuteronomy 28:1 to Deuteronomy 30:9 .
(7) He is the "Seed," "Heir," and "King" under the Davidic Covenant Matthew 1:1 ; Luke 1:31-33 .
(8) His sacrifice is the foundation of the New Covenant Deuteronomy 28:62-657 ; 1 Corinthians 11:25 .
make man in our image
Man. Genesis 1:26 ; Genesis 1:27 gives the general, Genesis 2:7 ; Genesis 2:21-23 the particular account of the creation of man. The revealed facts are:
(1) Man was created not evolved. This is
(a) expressly declared, and the declaration is confirmed by Christ Matthew 19:14 ; Mark 10:6 ,
(b) "an enormous gulf, a divergence practically infinite" (Huxley) between the lowest man and the highest beast, confirms it;
(c) the highest beast has no trace of God-consciousness--the religious nature;
(d) science and discovery have done nothing to bridge that "gulf."
(2) That man was made in the "image and likeness" of God. This image is found chiefly in man's tri-unity, and in his moral nature. Man is "spirit and soul and body" 1 Thessalonians 5:23 .
"Spirit" is that part of man which "knows" 1 Corinthians 2:11 and which allies him to the spiritual creation and gives him God-consciousness. "Soul" in itself implies self-consciousness life, as distinguished from plants, which have unconscious life. In that sense animals also have "soul" Genesis 1:24 . But the "soul" of man has a vaster content than "soul" as applied to beast life. It is the seat of emotions, desires, affections Psalms 42:1-6 . The "heart" is, in Scripture usage, nearly synonymous with "soul." Because the natural man is, characteristically, the soulual or physical man, "soul" is often used as synonymous with the individual, e.g. Genesis 12:5 . The body, separable from spirit and soul, and susceptible to death, is nevertheless an integral part of man, as the resurrection shows; John 5:28 ; John 5:29 ; 1 Corinthians 15:47-50 ; Revelation 20:11-13 . It is the seat of the senses (the means by which the spirit and soul have world-consciousness) and of the fallen Adamic nature. Romans 7:23 ; Romans 7:24 .
us , Genesis 11:7
And the Lord God said
The Adamic Covenant conditions the life of fallen man--conditions which must remain till, in the kingdom age, "the creation also shall be delivered from the bondage of corruption into the glorious liberty of the sons of God" Romans 8:21 . The elements of the Adamic Covenant are:
(1) The serpent, Satan's tool, is cursed ( Genesis 3:14 ), and becomes God's illustration in nature of the effects of sin--from the most beautiful and subtle of creatures to a loathsome reptile! The deepest mystery of the atonement is intimated here. Christ, "made sin for us," in bearing our judgment, is typified by the brazen serpent; Numbers 21:5-9 ; John 3:14 ; 2 Corinthians 5:21 . Brass speaks of judgment--in the brazen altar, of God's judgment, and in the laver, of self-judgment.
(2) The first promise of a Redeemer ( Genesis 3:15 ). Here begins the "Highway of the Seed," Abel, Seth, Noah Genesis 6:8-10 , Shem Genesis 9:26 ; Genesis 9:27 Abraham Genesis 12:1-4 , Isaac Genesis 17:19-21 Jacob Genesis 28:10-14 , Judah Genesis 49:10 , David 2 Samuel 7:5-17 Immanuel-Christ; Isaiah 7:9-14 ; Matthew 1:1 ; Matthew 1:20-23 ; 1 John 3:8 ; John 12:31 .
(3) The changed state of the woman ( Genesis 3:16 ). In three particulars:
(a) Multiplied conception; (b) motherhood linked with sorrow; (c) the headship of the man (cf) Genesis 1:26 ; Genesis 1:27 The entrance of sin, which is disorder, makes necessary a headship, and it is vested in man; 1 Timothy 2:11-14 ; Ephesians 5:22-25 ; 1 Corinthians 11:7-9 .
(4) The earth cursed ( Genesis 3:17 ) for man's sake. It is better for fallen man to battle with a reluctant earth than to live without toil.
(5) The inevitable sorrow of life ( Genesis 3:17 ).
(6) The light occupation of Eden Genesis 2:15 changed to burdensome labour Genesis 3:18 ; Genesis 3:19 .
(7) Physical death Genesis 3:19 ; Romans 5:12-21 , See "Death (spiritual)" Genesis 2:17 . (See Scofield " Ephesians 2:5 ") .
See for the other covenants:
EDENIC (See Scofield " Genesis 1:28 ")
NOAHIC (See Scofield " Genesis 9:1 ")
ABRAHAMIC (See Scofield " Genesis 15:18 ")
MOSAIC (See Scofield " Exodus 19:25 ")
PALESTINIAN (See Scofield " Deuteronomy 30:3 ")
DAVIDIC (See Scofield " John 12:319 ")
NEW (See Scofield " Hebrews 8:8 ")
and said unto them
The Noahic Covenant. The elements are:
(1) The relation of man to the earth under the Adamic Covenant is confirmed (See Scofield " Genesis 8:21 ")
(2) The order of nature is confirmed ( Genesis 8:22 )
(3) Human government is established ( Genesis 9:1-6 )
(4) Earth is secured against another universal judgment by water Genesis 8:21 ; Genesis 9:11
(5) A prophetic declaration is made that from Ham will descend an inferior and servile posterity Genesis 13:14-17 ; Genesis 9:25 .
(6) A prophetic declaration is made that Shem will have a peculiar relation to Jehovah Genesis 9:26 ; Genesis 9:27 . All divine revelation is through Semitic men, and Christ, after the flesh, descends from Shem.
(7) A prophetic declaration is made that from Japheth will descend the "enlarged" races Genesis 9:27 . Government, science, and art, speaking broadly, are and have been Japhetic, so that history is the indisputable record of the exact fulfilment of these declarations. (See Scofield " Genesis 8:21 ") for the other seven covenants:
EDENIC Genesis 1:28 ADAMIC Genesis 3:15 ABRAHAMIC Genesis 15:18 MOSAIC Exodus 19:25 PALESTINIAN Deuteronomy 30:3 DAVIDIC 2 Samuel 7:16 NEW Hebrews 8:8
covenant
The Abrahamic Covenant as formed Genesis 12:1-4 and confirmed; Genesis 9:24 ; Genesis 15:1-7 ; Genesis 17:1-8 is in seven distinct parts:
(1) "I will make of thee a great nation." Fulfilled in a threefold way:
(a) In a natural posterity--"as the dust of the earth Genesis 13:16 ; John 8:37 , viz. the Hebrew people.
(b) In a spiritual posterity--"look now toward heaven. .. so shall thy seed be" Exodus 20:1-26 ; Romans 4:16 ; Romans 4:17 ; Romans 9:7 ; Romans 9:8 ; Galatians 3:6 ; Galatians 3:7 ; Galatians 3:29 viz. all men of faith, whether Jew or Gentile.
(c) fulfilled also through Ishmael Genesis 17:18-20
(2) "I will bless thee." Fulfilled in two ways:
(a) temporally Genesis 13:14 ; Genesis 13:15 ; Genesis 13:17 ; Genesis 15:18 ; Genesis 24:34 ; Genesis 24:35 (b) spiritually; Genesis 15:6 ; John 8:56
(3) "And make thy name great." Abraham's is one of the universal names.
(4) "And thou shalt be a blessing" Galatians 3:13 ; Galatians 3:14
(5) "I will bless them that bless thee." In fulfilment closely related to the next clause.
(6) "And curse him that curseth thee." Wonderfully fulfilled in the history of the dispersion. It has invariably fared ill with the people who have persecuted the Jew--well with those who have protected him. The future will still more remarkably prove this principle Deuteronomy 30:7 ; Ezekiel 37:21-25 ,; Joel 3:1-8 ; Micah 5:7-9 ; Haggai 2:22 ; Zechariah 14:1-3 ; Matthew 25:40 ; Matthew 25:45 .
(7) "In thee shall all the families of the earth be blessed." This is the great evangelic promise fulfilled in Abraham's Seed, Christ Galatians 3:16 ; John 8:56-58 .
It brings into greater definiteness the promise of the Adamic Covenant concerning the Seed of the woman Genesis 3:15
NOTE.--The gift of the land is modified by prophecies of three dispossessions and restorations Genesis 15:13 ; Genesis 15:14 ; Amos 9:11-14 ; Hosea 2:14-169 ; Jeremiah 25:12 ; 1713436508_78 ; Deuteronomy 30:1-3 . Two dispossessions and restorations have been accomplished. Israel is now in the third dispersion, from which she will be restored at the return of the Lord as King under the Davidic Covenant; Deuteronomy 30:3 ; 1713436508_27 ; Ezekiel 37:21-25 ; Luke 1:30-33 ; Acts 15:14-17
See, for the other seven covenants:
EDENIC (See Scofield " Genesis 1:28 ") ADAMIC See Scofield " Genesis 3:15 " NOAHIC See Scofield " Genesis 9:1 " MOSAIC See Scofield " Exodus 19:25 " PALESTINIAN See Scofield " Deuteronomy 30:3 " DAVIDIC See Scofield " 2 Samuel 7:16 " NEW See Scofield " Hebrews 8:8 "
So Moses
The Mosaic Covenant,
(1) given to Israel
(2) in three divisions, each essential to the others, and together forming the Mosaic Covenant, viz.: the Commandments, expressing the righteous will of God John 8:39 the "judgments," governing the social life of Israel; Exodus 21:1 to Exodus 24:11 and the "ordinances," governing the religious life of Israel; Exodus 24:12 to Exodus 31:18 . These three elements form "the law," as that phrase is generically used in the New Testament (e.g.) Matthew 5:17 ; Matthew 5:18 . The Commandments and the ordinances formed one religious system. The Commandments were a "ministry of condemnation" and of "death" 2 Corinthians 3:7-9 the ordinances gave, in the high priest, a representative of the people with Jehovah; and in the sacrifices a "cover" (see "Atonement," (See Scofield " Leviticus 16:6 ") for their sins in anticipation of the Cross; Hebrews 5:1-3 ; Hebrews 9:6-9 ; Romans 3:25 ; Romans 3:26 . The Christian is not under the conditional Mosaic Covenant of works, the law, but under the unconditional New Covenant of grace.; Romans 3:21-27 ; Romans 6:14 ; Romans 6:15 ; Galatians 2:16 ; Galatians 3:10-14 ; Galatians 3:16-18 ; Galatians 3:24-26 ; Galatians 4:21-31 ; Hebrews 10:11-17 . See NEW COVENANT.
(See Scofield " Hebrews 8:8 ")
See,for the other seven covenants:
EDENIC (See Scofield " Genesis 1:28 ") ; ADAMIC See Scofield " Genesis 3:15 "; NOAHIC See Scofield " Genesis 9:1 "; ABRAHAMIC See Scofield " Genesis 15:18 "; PALESTINIAN See Scofield " Deuteronomy 30:3 "; DAVIDIC See Scofield " 2 Samuel 7:16 "; NEW See Scofield " Hebrews 8:8 ".
turn thy captivity
The Palestinian Covenant gives the conditions under which Israel entered the land of promise. It is important to see that the nation has never as yet taken the land under the unconditional Abrahamic Covenant, nor has it ever possessed the whole land (cf. Genesis 15:18 ; Numbers 34:1-12 . The Palestinian Covenant is in seven parts.
(1) Dispersion for disobedience, Deuteronomy 30:1 ; Deuteronomy 28:63-68 (See Scofield " Genesis 15:18 ")
(2) The future repentance of Israel while in the dispersion, Deuteronomy 30:2 .
(3) The return of the Lord, Deuteronomy 30:3 ; Amos 9:9-14 ; Acts 15:14-17 .
(4) Restoration to the land, Deuteronomy 30:5 ; Isaiah 11:11 ; Isaiah 11:12 ; Jeremiah 23:3-8 ; Isaiah 14:1
(5) National conversion, Deuteronomy 30:6 ; Romans 11:26 ; Romans 11:27 ; 1713436508_50
(6) The judgment of Israel's oppressors, Deuteronomy 30:7 ; Isaiah 14:1 ; Isaiah 14:2 ; Joel 3:1-8 ; Matthew 25:31-46
(7) National prosperity, Deuteronomy 30:9 ; Genesis 15:16
For Another Point of View: See Topic 301242
See, for the other seven covenants:
EDENIC (See Scofield " Genesis 1:28 ") ADAMIC See Scofield " Genesis 3:15 " ABRAHAMIC See Scofield " Genesis 15:18 " NOAHIC See Scofield " Genesis 9:1 " MOSAIC See Scofield " Exodus 19:25 " DAVIDIC See Scofield " 2 Samuel 7:16 " NEW See Scofield " Hebrews 8:8 "
The Davidic Covenant
The Davidic Covenant 2 Samuel 7:8-17 .
This covenant, upon which the glorious kingdom of Christ "of the seed of David according to the flesh" is to be founded, secures:
(1) A Davidic "house"; i.e. posterity, family
(2) A "throne"; i.e. royal authority
(3) A kingdom; i.e. sphere of rule
(4) In perpetuity; "for ever"
(5) And this fourfold covenant has but one condition: disobedience in the Davidic family is to be visited with chastisement; but not to the abrogation of the covenant 2 Samuel 7:15 ; Zechariah 12:8 ; Isaiah 24:5 ; Isaiah 54:3 .
The chastisement fell; first in the division of the kingdom under Rehoboam, and, finally, in the captivities. 2 Kings 25:1-7 . Since that time but one King of the Davidic family has been crowned at Jerusalem and He was crowned with thorns. But the Davidic Covenant confirmed to David by the oath of Jehovah, and renewed to Mary by the angel Gabriel, is immutable Psalms 89:30-37 and the Lord God will yet give to that thorn-crowned One "the throne of his father David."; Luke 1:31-33 ; Acts 2:29-32 ; Acts 15:14-17 .
See, for the other seven covenants:
EDENIC, (See Scofield " Genesis 1:28 ") ADAMIC, See Scofield " Genesis 3:15 " NOAHIC, See Scofield " Genesis 9:1 " ABRAHAMIC, See Scofield " Genesis 15:18 " MOSAIC, See Scofield " Exodus 19:25 " PALESTINIAN, See Scofield " Deuteronomy 30:3 " NEW, See Scofield " Hebrews 8:8 "
and said unto them
The Noahic Covenant. The elements are:
(1) The relation of man to the earth under the Adamic Covenant is confirmed (See Scofield " Genesis 8:21 ")
(2) The order of nature is confirmed ( Genesis 8:22 )
(3) Human government is established ( Genesis 9:1-6 )
(4) Earth is secured against another universal judgment by water Genesis 8:21 ; Genesis 9:11
(5) A prophetic declaration is made that from Ham will descend an inferior and servile posterity Genesis 9:24 ; Genesis 9:25 .
(6) A prophetic declaration is made that Shem will have a peculiar relation to Jehovah Genesis 9:26 ; Genesis 9:27 . All divine revelation is through Semitic men, and Christ, after the flesh, descends from Shem.
(7) A prophetic declaration is made that from Japheth will descend the "enlarged" races Genesis 9:27 . Government, science, and art, speaking broadly, are and have been Japhetic, so that history is the indisputable record of the exact fulfilment of these declarations. (See Scofield " Genesis 8:21 ") for the other seven covenants:
EDENIC Genesis 1:28 ADAMIC Genesis 3:15 ABRAHAMIC Genesis 15:18 MOSAIC Exodus 19:25 PALESTINIAN Deuteronomy 30:3 DAVIDIC 2 Samuel 7:16 NEW Hebrews 8:8

Context Summary

Hebrews 8:1-13 - The Mediator Of The New Covenant
Such a High Priest, Hebrews 8:1-6. He sits because His work is finished so far as His sacrifice is concerned. His place is at God's right hand-the seat of power. By faith we, too, may serve in the inner sanctuary of the spirit. Before you start building, and while engaged in building, your life-work, see that your eyes are fixed on the divine ideal and pattern.
Such a new covenant, Hebrews 8:7-13. It is as superior to the former as Christ's priesthood is to Aaron's. A covenant is a promise, made on conditions to be fulfilled, and attested by an outward sign, like the rainbow, or circumcision, or the Lord's Supper. The covenant under which we live is between God and Christ on behalf of those who belong to Him. We have a perfect right to put our hand on every one of these eight provisions, and claim that each be made good to us. We need not ask that God should do as he has said, but with lowly reverence expect that He will-especially when we drink of the cup of the New Covenant at the Lord's table. [source]

Chapter Summary: Hebrews 8

1  By the eternal priesthood of Christ the Levitical priesthood of Aaron is overshadowed;
7  and replaced by the new covenant of the Gospel

Greek Commentary for Hebrews 8:8

Finding fault with them [μεμπομενος αυτους]
Present middle participle of μεμπομαι — memphomai (cf. αμεμπτος — amemptos), old verb, in N.T. only here and Romans 9:19. The covenant was all right, but the Jews failed to keep it. Hence God made a new one of grace in place of law. Why do marriage covenants so often fail to hold? The author quotes in Hebrews 8:8-12; Jeremiah 31:31-34 (in lxx 38:31-34) in full which calls for little explanation or application to prove his point (Hebrews 8:13). I will make Future active of συντελεω — sunteleō old compound verb to accomplish as in Mark 13:4; Romans 9:28. A new covenant In Hebrews 12:24 we have διατηκης νεας — diathēkēs neas but καινης — kainēs in 1 Corinthians 11:25. Καινος — Kainos is fresh, on new lines as opposed to the old (παλαιος — palaios) as in 2 Corinthians 3:6, 2 Corinthians 3:14; νεος — neos is young or not yet old. [source]
For finding fault with them [μεμφόμενος αὐτοὺς]
Them signifies the possessors of the first covenant. The prophet says what follows by way of blame. The passage cited is Jeremiah href="/desk/?q=jer+31:31-34&sr=1">Jeremiah 31:31-34). The writer assumes that Jeremiah's new covenant means the Christian covenant. [source]
I will make [συντελέσω]
Rend. I will conclude or consummate. See on Luke 4:13. Only here in Hebrews, and once in Paul, Romans 9:28, a citation. [source]
With the house [ἐπὶ]
The preposition marking direction toward. [source]
A new covenant [διαθήκην καινήν]
Always καινὴ in the phrase new covenant, except Hebrews 12:24, where we have νέα . For the distinction see note there, and see on Matthew 26:29. [source]

Reverse Greek Commentary Search for Hebrews 8:8

Matthew 26:28 The Covenant [της διατηκης]
The adjective καινης — kainēs in Textus Receptus is not genuine. The covenant is an agreement or contract between two It is used also for will (Latin, testamentum) which becomes operative at death (Hebrews 9:15-17). Hence our New Testament. Either covenant or will makes sense here. Covenant is the idea in Hebrews 7:22; Hebrews 8:8 and often. In the Hebrew to make a covenant was to cut up the sacrifice and so ratify the agreement (Genesis 15:9-18). Lightfoot argues that the word αντι — diathēke means covenant in the N.T. except in Hebrews 9:15-17. Jesus here uses the solemn words of Exodus 24:8 “the blood of the covenant” at Sinai. “My blood of the covenant” is in contrast with that. This is the New Covenant of Jeremiah 31; Hebrews 8:1-13. [source]
Romans 9:19 Why doth he still find fault? [τι ετι μεμπεται]
Old verb, to blame. In N.T. only here and Hebrews 8:8. Paul‘s imaginary objector picks up the admission that God hardened Pharaoh‘s heart. “Still” (ετι — eti) argues for a change of condition since that is true. [source]
Hebrews 9:16 There must also of necessity be the death of the testator [θάνατου ἀνάγκη φέρεσθαι τοῦ διαθεμένου]
Rend. it is necessary that the death of the institutor (of the covenant ) should be borne. With the rendering testament, φέρεσθαι is well-nigh inexplicable. If covenant the meaning is not difficult. If he had meant to say it is necessary that the institutor die, he might better have used γένεσθαι : “it is necessary that the death of the institutor take place ”; but he meant to say that it was necessary that the institutor die representatively; that death should be borne for him by an animal victim. If we render testament, it follows that the death of the testator himself is referred to, for which θάνατου φέρεσθαι is a very unusual and awkward expression. Additional Note on Hebrews 9:16Against the rendering testament for διαθήκη , and in favor of retaining covenant, are the following considerations: (a) The abruptness of the change, and its interruption of the line of reasoning. It is introduced into the middle of a continuous argument, in which the new covenant is compared and contrasted with the Mosaic covenant (8:6-10:18). -DIVIDER-
-DIVIDER-
(b) The turning-point, both of the analogy and of the contrast, is that both covenants were inaugurated and ratified by death: not ordinary, natural death, but sacrificial, violent death, accompanied with bloodshedding as an essential feature. Such a death is plainly indicated in Hebrews 9:15. If διαθήκη signifies testament, θάνατον deathin Hebrews 9:16must mean natural death without bloodshed. -DIVIDER-
-DIVIDER-
(c) The figure of a testament would not appeal to Hebrews in connection with an inheritance. On the contrary, the idea of the κληρονομία was always associated in the Hebrew mind with the inheritance of Canaan, and that inheritance with the idea of a covenant. See Deuteronomy 4:20-23; 1 Chronicles 16:15-18; Psalm 105:8-11. -DIVIDER-
-DIVIDER-
(d) In lxx, from which our writer habitually quotes, διαθήκη has universally the meaning of covenant. It occurs about 350 times, mostly representing בְּרִית, covenant. In the Apocryphal books it has the same sense, except in Exodus href="/desk/?q=ex+30:26&sr=1">Exodus 30:26; Numbers 14:44; 2 Kings 6:15; Jeremiah 3:16; Malachi 3:1; Luke 1:72, Acts 3:25; Acts 7:8. Also in N.T. quotations from the O.T., where, in its translation of the O.T., it uses foedus. See Jeremiah 31:31, cit. Hebrews 8:8. For διατιθέσθαι of making a covenant, see Hebrews 8:10; Acts 3:25; Hebrews 10:16. -DIVIDER-
-DIVIDER-
(e) The ratification of a covenant by the sacrifice of a victim is attested by Genesis 15:10; Psalm 1:5; Jeremiah 34:18. This is suggested also by the phrase כָּרַֽת בְּרִֽת, to cut a covenant, which finds abundant analogy in both Greek and Latin. Thus we have ὅρκια τάμνειν tocut oaths, that is, to sacrifice a victim in attestation (Hom. Il. ii. 124; Od. xxiv. 483: Hdt. vii. 132). Similarly, σπονδὰς letus cut (make ) a league (Eurip. Hel. 1235): φίλια τέμνεσθαι tocement friendship by sacrificing a victim; lit. to cut friendship (Eurip. Suppl. 375). In Latin, foedus ferire to strike a league foedus ictum a ratified league, ratified by a blow (ictus ). -DIVIDER-
-DIVIDER-
(f) If testament is the correct translation in Hebrews 9:16, Hebrews 9:17, the writer is fairly chargeable with a rhetorical blunder; for Hebrews 9:18ff. is plainly intended as a historical illustration of the propositions in Hebrews 9:16, Hebrews 9:17, and the illustration turns on a point entirely different from the matter illustrated. The writer is made to say, “A will is of no force until after the testator's death; therefore the first covenant was ratified with the blood of victims.sa180 [source]

Hebrews 12:24 The mediator of the new covenant [διαθήκης νέας μεσίτῃ]
See Hebrews 7:22; Hebrews 8:6, Hebrews 8:8, Hebrews 8:9, Hebrews 8:10; Hebrews 9:15. For covenant, see on Hebrews 9:6ff. For the new covenant, rend. a new covenant. Νέα newonly here applied to the covenant in N.T. The word elsewhere is καινή . For the distinction, see on Matthew 26:29. It is better not to press the distinction, since νεός , in certain cases, clearly has the sense of quality rather than of time, as 1 Corinthians 5:7; Colossians 3:10, and probably here, where to confine the sense to recent would seem to limit it unduly. In the light of all that the writer has said respecting the better quality of the Christian covenant, superseding the old, outworn, insufficient covenant, he may naturally be supposed to have had in mind something besides its mere recentness. Moreover, all through the contrast from Hebrews 12:18, the thought of earlier and later is not once touched, but only that of inferior and better; repellency and invitation; terrors and delights; fear and confidence. Note that the privilege of approaching the Mediator in person is emphasized. [source]
Hebrews 10:15 And the Holy Ghost also beareth witness to us [μαρτυρει δε ημιν και το πνευμα το αγιον]
Μαρτυρεω — Martureō is common in Philo for Scripture quotation. The author confirms his interpretation of Psalm 40:7-9 by repeating from Jeremiah (Jeremiah 31:31.) what he had already quoted (Hebrews 8:8-12). After he hath said Accusative case after μετα — meta of the articular infinitive perfect active, “after the having said.” [source]
Hebrews 12:24 To Jesus [Ιησου]
This great fact is not to be overlooked (Philemon 2:10.). He is there as Lord and Saviour and still “Jesus.” The mediator of a new covenant As already shown (Hebrews 7:22; Hebrews 8:6, Hebrews 8:8, Hebrews 8:9, Hebrews 8:10; Hebrews 9:15) and now gloriously consummated. To the blood of sprinkling As in Hebrews 9:19-28. Than Abel Accusative as in Hebrews 1:4. Better Comparative of καλος — kalos Abel‘s blood still speaks (Hebrews 11:4), but it is as nothing compared to that of Jesus. [source]
Hebrews 8:8 Finding fault with them [μεμπομενος αυτους]
Present middle participle of μεμπομαι — memphomai (cf. αμεμπτος — amemptos), old verb, in N.T. only here and Romans 9:19. The covenant was all right, but the Jews failed to keep it. Hence God made a new one of grace in place of law. Why do marriage covenants so often fail to hold? The author quotes in Hebrews 8:8-12; Jeremiah 31:31-34 (in lxx 38:31-34) in full which calls for little explanation or application to prove his point (Hebrews 8:13). I will make Future active of συντελεω — sunteleō old compound verb to accomplish as in Mark 13:4; Romans 9:28. A new covenant In Hebrews 12:24 we have διατηκης νεας — diathēkēs neas but καινης — kainēs in 1 Corinthians 11:25. Καινος — Kainos is fresh, on new lines as opposed to the old (παλαιος — palaios) as in 2 Corinthians 3:6, 2 Corinthians 3:14; νεος — neos is young or not yet old. [source]
Hebrews 8:10 This [αυτη]
The “new” one of Hebrews 8:8. That I will make Future middle of διατιτημι — diatithēmi “that I will covenant,” cognate accusative “Giving,” present active participle of διδωμι — didōmi to give. Into their mind Their intellect, their moral understanding, all the intellect as in Aristotle (Colossians 1:21; Ephesians 4:18). On their heart Either genitive singular or accusative plural. Καρδια — Kardia is the seat of man‘s personal life (Westcott), the two terms covering the whole of man‘s inward nature. A god Note the Hebraistic use of εις — eis in the predicate instead of the usual nominative τεος — theos as in “a people” This was the ideal of the old covenant (Exodus 6:7), now at last to be a fact. [source]

What do the individual words in Hebrews 8:8 mean?

Finding fault for with them He says Behold [the] days are coming says [the] Lord and I will ratify with the house of Israel of Judah a covenant new
μεμφόμενος γὰρ αὐτοὺς λέγει Ἰδοὺ ἡμέραι ἔρχονται λέγει Κύριος καὶ συντελέσω ἐπὶ τὸν οἶκον Ἰσραὴλ Ἰούδα διαθήκην καινήν

μεμφόμενος  Finding  fault 
Parse: Verb, Present Participle Middle or Passive, Nominative Masculine Singular
Root: μέμφομαι  
Sense: to blame, find fault.
αὐτοὺς  with  them 
Parse: Personal / Possessive Pronoun, Accusative Masculine 3rd Person Plural
Root: αὐτός  
Sense: himself, herself, themselves, itself.
λέγει  He  says 
Parse: Verb, Present Indicative Active, 3rd Person Singular
Root: λέγω 
Sense: to say, to speak.
Ἰδοὺ  Behold 
Parse: Verb, Aorist Imperative Active, 2nd Person Singular
Root: ἰδού  
Sense: behold, see, lo.
ἡμέραι  [the]  days 
Parse: Noun, Nominative Feminine Plural
Root: ἡμέρα  
Sense: the day, used of the natural day, or the interval between sunrise and sunset, as distinguished from and contrasted with the night.
ἔρχονται  are  coming 
Parse: Verb, Present Indicative Middle or Passive, 3rd Person Plural
Root: ἔρχομαι  
Sense: to come.
λέγει  says 
Parse: Verb, Present Indicative Active, 3rd Person Singular
Root: λέγω 
Sense: to say, to speak.
Κύριος  [the]  Lord 
Parse: Noun, Nominative Masculine Singular
Root: κύριος  
Sense: he to whom a person or thing belongs, about which he has power of deciding; master, lord.
συντελέσω  I  will  ratify 
Parse: Verb, Future Indicative Active, 1st Person Singular
Root: συντελέω  
Sense: to end together or at the same time.
οἶκον  house 
Parse: Noun, Accusative Masculine Singular
Root: οἶκος  
Sense: a house.
Ἰσραὴλ  of  Israel 
Parse: Noun, Genitive Masculine Singular
Root: Ἰσραήλ  
Sense: the name given to the patriarch Jacob (and borne by him in addition to his former name).
Ἰούδα  of  Judah 
Parse: Noun, Genitive Masculine Singular
Root: Ἰουδά  
Sense: the fourth son of the patriarch Jacob.
διαθήκην  a  covenant 
Parse: Noun, Accusative Feminine Singular
Root: διαθήκη  
Sense: a disposition, arrangement, of any sort, which one wishes to be valid, the last disposition which one makes of his earthly possessions after his death, a testament or will.
καινήν  new 
Parse: Adjective, Accusative Feminine Singular
Root: καινός  
Sense: new.