The New Covenant, pt. 2

 

 
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WEEK 10: Jesus and the Fulfillment of All Covenants

Primary Texts

  • Luke 24:25–27, 44–49

  • 2 Corinthians 1:20

  • Hebrews 9:11–28

  • Galatians 3:15–29

Expositional Outline

I. Jesus Interprets the Scriptures About Himself (Luke 24:25–27, 44–49)

  • vv.25–27: The risen Christ teaches that all Scripture points to Him — “Moses and all the Prophets.”

  • vv.44–47: He explicitly ties the Law, Prophets, and Psalms (entire OT canon) to His suffering and resurrection.

  • v.49: Fulfillment includes the coming of the Spirit — promise of the Father.

II. All God’s Promises Find Their Yes in Christ (2 Corinthians 1:20)

  • v.20: Paul states that every promise — Noahic, Abrahamic, Mosaic, Davidic — finds its confirmation and guarantee in Jesus.

III. Jesus as the Final Mediator and Sacrifice (Hebrews 9:11–28)

  • vv.11–14: Christ enters a greater tabernacle and offers His own blood — once for all.

  • vv.15–17: He is the mediator of a new covenant — His death enacts the covenantal will.

  • vv.24–28: Contrast between earthly and heavenly tabernacle; Jesus appears before God on our behalf.

IV. Covenant and Promise Fulfilled in Christ (Galatians 3:15–29)

  • vv.15–18: Paul distinguishes the promise (to Abraham) from the law (Moses). The law didn’t annul the promise.

  • v.16: “To your seed” — singular. Paul reads the Abrahamic promise as pointing specifically to Christ.

  • vv.24–29: The law was a guardian, but now we’re heirs through faith in Christ — Abraham’s children.

Original Language Insights

  • ἐπαγγελία (epangelia) – “Promise” (2 Cor. 1:20; Gal. 3:16). In Greek, this carries the weight of a royal decree, not a suggestion or invitation. It is binding.

  • διαθήκη (diathēkē) – “Covenant/Testament” (Heb. 9:15). Also used for a last will. Christ’s death enacts the benefits of the covenant for the heirs.

  • τετέλεσται (tetelestai) – “It is finished” (John 19:30, not primary but relevant). A declaration that covenantal fulfillment has been achieved.

Cross-References

  • Genesis 12:3 → Galatians 3:8 – Paul sees the gospel in the Abrahamic promise.

  • Exodus 24:8 → Luke 22:20 – “Blood of the covenant” reframed in Jesus' death.

  • 2 Samuel 7:12–16 → Luke 1:32–33 – Jesus as the heir to David’s eternal throne.

  • Jeremiah 31:31–34 → Hebrews 8 – Jesus mediates the New Covenant with internal transformation and lasting forgiveness.

Hermeneutical Analysis

Historical-Grammatical

  • Luke 24 is a theological key: Jesus validates that the whole Old Testament should be read Christologically. This is not reading backwards, but reading deeply — with Spirit-illumined eyes.

Canonical

  • Jesus is not one thread in the biblical story — He is the center. Every covenant builds anticipation. Their structures (offspring, land, blessing, kingship, law, presence) are all incomplete until fulfilled in Him.

Redemptive-Historical

  • Noahic – Jesus brings lasting peace between God and creation (Col. 1:20).

  • Abrahamic – Jesus is the promised seed and brings blessing to the nations.

  • Mosaic – Jesus fulfills the law’s demands and enables obedience through the Spirit.

  • Davidic – Jesus is the eternal King, reigning forever.

  • New Covenant – Jesus mediates it through His death, bringing internal transformation and permanent forgiveness.

Deep-Dive, Theologically Rich Insights

  • 2 Corinthians 1:20 – “Yes and Amen” in Christ

    • “Yes” means fulfilled, “Amen” is the community’s response. Christ doesn’t just fulfill the promises — He invites us to respond in faith and worship.

  • Galatians 3:16 – Paul’s singular reading of “seed”

    • Paul performs a theological reading of Genesis — not forcing the grammar, but showing that God’s plan always pointed to a single redeemer. This is apostolic hermeneutics at work.

  • Hebrews 9:15 – The “will” enacted by death

    • A covenant, in this text, is likened to a testamentary document. Christ’s death not only atones but enacts the inheritance — just as a will only goes into effect when the testator dies.

  • Jesus as the Better Moses, Better David, Better Sacrifice

    • He doesn’t discard the previous covenants — He embodies them:

      • A better Moses who mediates lasting forgiveness (Heb. 3).

      • A better David whose throne is eternal (Luke 1:32).

      • A better sacrifice that ends all sacrifices (Heb. 10).

Teaching or Preaching Application

Hook: Ask, “Have you ever followed a story that didn’t make sense until the ending reframed everything?” Then show how Jesus is the lens that clarifies the whole biblical story.

Application Points:

  • The Bible is not a set of disconnected contracts but a unified covenantal plan fulfilled in Christ.

  • Faith in Jesus is not an escape from covenant but an entrance into its fulfillment.

  • Christians live under the better covenant — full access, full assurance, full transformation.

Discussion Questions:

  1. How does seeing Jesus as the fulfillment of every covenant change how you read the Old Testament?

  2. What’s the difference between obeying a law and being empowered by a promise?

  3. What does it mean for the church to live under a better covenant?



Austin W. Duncan

Austin is the Associate Pastor at Crosswalk Church in Brentwood, TN. His mission is to reach the lost, equip believers, and train others for ministry. Through deep dives into Scripture, theology, and practical application, his goal is to help others think biblically, defend their faith, and share the gospel.

https://austinwduncan.com
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The New Covenant, pt. 1