Definition and Concept of Biblical Covenants

A biblical covenant is fundamentally an agreement or contract between two parties, often involving mutual obligations and promises ^{[1, 3]}. The Hebrew term berith, consistently translated as "covenant" in the Old Testament, derives from a root meaning "to cut" ^[1]. This etymology alludes to an ancient practice where contracting parties would cut animals in two and pass between the divided parts, symbolizing the solemnity and consequences of the agreement (Genesis 15; Jeremiah 34:18-19) ^{[1, 2]}. The corresponding Greek word in the New Testament is diatheke, which is frequently rendered "testament" in older English translations but also means "covenant" ^{[1, 2]}.

Covenants in the Bible are diverse, ranging from agreements between individuals or nations to foundational pacts between God and humanity ^{[2, 7]}. For instance, Abraham formed alliances with Canaanite princes and Abimelech, and Joshua made a covenant with the Gibeonites ^[5]. These human-to-human covenants could be for establishing friendship, securing assistance in war, mutual protection, or promoting commerce ^{[3, 7]}. They were often confirmed by oath, witnessed, and sometimes written and sealed ^[3].

However, the most significant covenants in biblical theology are those initiated by God. These divine covenants establish a relationship between God and humanity, or specific groups within humanity ^{[2, 7]}. One of the earliest explicit mentions of a covenant in the Bible is God's unilateral pact with humankind and the world after the flood, promising that such a judgment would not be repeated (Genesis 9:9, 11, 14-17) ^[12].

A key theological distinction in Reformed theology is between the covenant of works and the covenant of grace. The covenant of works was established with Adam as the representative of humanity, with perfect obedience as its condition ^[4]. This covenant is contrasted with the covenant of grace, which addresses humanity's inability to perfectly obey.

God made significant covenants with specific individuals and groups in the Old Testament:

With Noah: A promise that a flood would not again destroy the earth ^[2].
With Abraham: A foundational covenant promising land, descendants, and blessings (Genesis 15:7-18; 17:2-14) ^{[6, 10]}. This covenant is seen as fulfilled in Christ ^[6].
With Israel (at Sinai): This covenant, codified in Exodus 20–23 and expanded upon in Deuteronomy, established the relationship between the Lord and Israel, with the Ten Commandments at its heart ^[13]. The first covenant, made at Sinai, was not considered the ultimate end of God's plan, as it did not fully address human weaknesses ^[9].
With David: A divine promise to David's lineage of an everlasting kingdom and superintendence of the temple (Psalm 89:4, 29, 34, 39; Jeremiah 33:21; 2 Samuel 7) ^[8].

The concept of a "new covenant" is prophesied in Jeremiah 31:31-34, which speaks of a time when God will make a new covenant with the house of Israel and Judah, writing his law on their hearts ^[9]. This prophecy is central to understanding the transition from the Old Testament to the New Testament. The author of Hebrews quotes Jeremiah 31:31-34 to demonstrate the superiority of the new covenant over the old, arguing that the first covenant was not faultless and did not solve human weaknesses ^[9]. This new covenant is realized through Jesus Christ, who is the substance and mediator of the covenant, ratifying it with his blood (Hebrews 8:6; 9:11-14, 16-23) ^{[6, 11]}. The new covenant is described as a covenant of peace and is confirmed in Christ ^[6].

Sources

Easton's Bible Dictionary “Easton's Bible Dictionary: Covenant — A contract or agreement between two parties. In the Old Testament the Hebrew word berith is always thus translated. Berith is derived from a root which means "to cut," and hence a covenant is a "cutting," with reference to the cutting or dividing of animals into two parts, and the contracting parties passing between them, in making a covenant (Gen. 15; Jer. 34:18, 19). The corresponding word in the New Testament Greek is diatheke, which is, however, rendered "testament" generally in the Authorized Version. It ought to be rendered, just as the word berith o”
Smith's Bible Dictionary “Smith's Bible Dictionary: Covenant — The Heb. berith means primarily "a cutting," with reference to the custom of cutting or dividing animals in two and passing between the parts in ratifying a covenant. (Genesis 15; Jeremiah 34:18,19) In the New Testament the corresponding word is diathece (diatheke), which is frequently translated testament in the Authorized Version. In its biblical meaning two parties the word is used-- + Of a covenant between God and man; e.g. God covenanted with Noah, after the flood, that a like judgment should not be repeated. It is not precisely like a covenant between”
Torrey's Topical Textbook “Torrey's Topical Textbook: Covenants — Agreements between two parties -- Ge 26:28; Da 11:6. Designed for Establishing friendship. -- 1Sa 18:3. Procuring assistance in war. -- 1Ki 15:18,19. Mutual protection. -- Ge 26:28,29; 31:50-52. Establishing peace. -- Jos 9:15,16. Promoting commerce. -- 1Ki 5:6-11. Selling land. -- Ge 23:14-16. Conditions of Clearly specified. -- 1Sa 11:1,2. Conformed by oath. -- Ge 21:23,31; 26:31. Witnessed. -- Ge 23:17,18; Ru 4:9-11. Written and sealed. -- Ne 9:38; 10:1. God often called to witness -- Ge 31:50,53. When confirmed, unalterable -- Ga 3:15. Made by passing”
Easton's Bible Dictionary “Easton's Bible Dictionary: Works, Covenant of — Entered into by God with Adam as the representative of the human race (comp. Gen. 9:11, 12; 17:1-21), so styled because perfect obedience was its condition, thus distinguishing it from the covenant of grace. (See COVENANT OF [672]WORKS.)”
Easton's Bible Dictionary “Easton's Bible Dictionary: Alliance — A treaty between nations, or between individuals, for their mutual advantage. Abraham formed an alliance with some of the Canaanitish princes (Gen. 14:13), also with Abimelech (21:22-32). Joshua and the elders of Israel entered into an alliance with the Gibeonites (Josh. 9:3-27). When the Israelites entered Palestine they were forbidden to enter into alliances with the inhabitants of the country (Lev. 18:3, 4; 20:22, 23). Solomon formed a league with Hiram (1 Kings 5:12). This "brotherly covenant" is referred to 250 years afterwards (Amos 1:9). He also app”
Torrey's Topical Textbook “Torrey's Topical Textbook: Covenant, The — Christ, the substance of -- Isa 42:6; 49:8. Christ, the Mediator of -- Heb 8:6; 9:15; 12:24. Christ, the Messenger of -- Mal 3:1. Made with Abraham. -- Ge 15:7-18; 17:2-14; Lu 1:72-75; Ac 3:25; Ga 3:16. Isaac. -- Ge 17:19,21; 26:3,4. Jacob. -- Ge 28:13,14; 1Ch 16:16,17. Israel. -- Ex 6:4; Ac 3:25. David. -- 2Sa 23:5; Ps 89:3,4. Renewed under the gospel -- Jer 31:31-33; Ro 11:27; Heb 8:8-10,13. Fulfilled in Christ -- Lu 1:68-79. Confirmed in Christ -- Ga 3:17. Ratified by the blood of Christ -- Heb 9:11-14,16-23. Is a covenant of peace -- Isa 54:9,10; ”
STEPBible TBESG “[H1285] H1285 = (H1285) — 1) covenant, alliance, pledge 1a) between men 1a1) treaty, alliance, league (man to man) 1a2) constitution, ordinance (monarch to subjects) 1a3) agreement, pledge (man to man) 1a4) alliance (of friendship) 1a5) alliance (of marriage) 1b) between God and man 1b1) alliance (of friendship) 1b2) covenant (divine ordinance with signs or pledges) 2) (phrases) 2a) covenant making 2b) covenant keeping 2c) covenant violation”
Brown-Driver-Briggs “[BDB H1285] berith (part 4/6) — with David Psa 89:4; 89:29; 89:34; 89:39; 132:12; Jer 33:21 (compare 2 Samuel 7 = 1 Chronicles 17); a divine promise to the seed of David of an everlasting kingdom, the relation of sonship, and the superintendence of the temple (compare Psalms 2..) g. Jehoiada and the people 2Kin 11:17 2Chr 23:3, a constitutional agreement to be the people of Yahweh. h. Hezekiah and the people2Chr 29:10, a constitutional agreement to reform the worship. i. Josiah and the people 2Kin 23:3, a constitutional agreement to obey the book of the covenant. j. Ezra and the people Ezra 10”
Hebrews (Protestant academic) “Tyndale House on Hebrews 8:7: 8:7-13 The author quotes Jer 31:31-34, an Old Testament prophecy concerning the new covenant that includes a number of striking promises. Establishing the superiority of the new covenant lays a foundation for the argument in Heb 9:1–10:18 that the Son’s offering under the new covenant was superior to the offerings of the old covenant. 8:7 The first covenant, made at Sinai, was not faultless. It was not the end of God’s plan, because it didn’t solve human weaknesses (see 7:11-28; 8:9).”
CCEL (Reformed) “Calvin, Commentary on Genesis, Vol. 1 (Gen 1-23), section 28.1: Index of Scripture References Genesis 1:1-6 1:1-31 1:2 1:28 1:29-30 2:1 2:1-25 2:15 2:19 3:1 3:1-24 3:7 3:16 4:1 4:1-26 4:7 5:1 5:1-32 6:1 6:1-22 6:11-16 7:1-24 7:11 8:1-22 9:1 9:1 9:1-29 9:2 9:24 10 10:1 10:1 10:1-32 10:21 11:1 11:1 11:1-32 11:28 12:1 12:1 12:1 12:1-20 12:4 12:4 12:6 13:1 13:1-20 14:1-24 15:1-21 15:7 16:1-16 16:2 16:8 17:1 17:1 17:1 17:1 17:1-27 18:1 18:1 18:1-33 18:19 19:1-38 20:1 20:1 20:1-18 21:1-34 21:15 22:1-24 22:18 23:1-20 24:31 25:1 25:13-16 35:7 48:1 Exodus 6:3 12:40 Leviticus 7:18 17:4 18:25 Numbers 6:2”
Jeremiah (Protestant academic) “Tyndale House on Jeremiah 31:31: 31:31 The day of the new covenant was realized when Jesus Christ accomplished his redemptive mission on earth (see Heb 8:8-12).”
Genesis (Protestant academic) “Tyndale House on Genesis 6:18: 6:18 This first explicit mention of a covenant in the Bible refers to the unilateral pact that God made with humankind and the world after the flood (see 9:9, 11, 14-17).”
Deuteronomy (Protestant academic) “Tyndale House on Deuteronomy 4:13: 4:13 The covenant is the key theological idea of Deuteronomy and perhaps of the entire Old Testament. A covenant was a legal arrangement involving two or more parties who entered into agreements with mutually binding obligations. The covenant at Sinai (Exod 20–23) codified this relationship between the Lord and Israel; in Deuteronomy, Moses interpreted and expanded the covenant for the new generation that was about to conquer and occupy the Promised Land. • The Ten Commandments (literally the ten words, “decalogue”) are so much at the heart of the covenant te”

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