How does Hebrews 10:15 connect with Jeremiah 31:33-34 about the new covenant?

Hebrews 10:15 – The Spirit’s Testimony

• “The Holy Spirit also testifies to us about this.”

• The writer has just declared that Jesus’ single sacrifice “perfected for all time” those being sanctified (10:14).

• Verse 15 shows who confirms that truth—the Holy Spirit Himself, speaking through Scripture.

---

Jeremiah 31:33-34 – Promise of a New Covenant

• “I will put My law in their minds and write it on their hearts…” (v. 33)

• “I will forgive their iniquities and remember their sins no more.” (v. 34)

• Spoken six centuries earlier, these words describe a covenant unlike the one made at Sinai (Jeremiah 31:31-32).

---

How Hebrews Connects to Jeremiah

• Same Speaker: the Lord declares both passages; Hebrews treats Jeremiah’s words as the Spirit’s present voice.

• Same Covenant Language: putting the law “in hearts” and erasing sin appear verbatim in Hebrews 10:16-17.

• Fulfillment, not mere reminder: Jeremiah’s prophecy looked forward; Hebrews presents it as accomplished through Christ.

• Internal change replaces external regulation—law moves from stone tablets to living hearts (cf. 2 Corinthians 3:3).

• Complete forgiveness ends repetitive sacrifices (Hebrews 10:18), fulfilling “remember their sins no more.”

---

The Role of the Holy Spirit in the New Covenant

• Witness: He “testifies” (Hebrews 10:15) that Jesus’ work satisfies God forever.

• Writer: He authored Jeremiah’s promise, proving Scripture’s unity (2 Peter 1:21).

• Inscriber: He writes God’s law on human hearts (Ezekiel 36:26-27; Romans 8:4).

• Seal: He guarantees believers’ inheritance (Ephesians 1:13-14), making the covenant effects irreversible.

---

Christ’s Sacrifice Secures the Covenant

• Luke 22:20 – “This cup is the new covenant in My blood…”

• Hebrews 9:12 – “Not by the blood of goats… but by His own blood, thus securing eternal redemption.”

• Because His offering is once-for-all, God can literally forget sins (Hebrews 10:17), fulfilling Jeremiah 31:34.

• The obsolete first covenant fades (Hebrews 8:13); the new covenant stands forever.

---

Living Under the Covenant Today

• Confidence to draw near: hearts sprinkled clean (Hebrews 10:22).

• Ongoing transformation: Spirit-written law shapes desires and choices (Galatians 5:16-25).

• Assured forgiveness: no past sin can reappear on God’s ledger (Psalm 103:12; Romans 8:1).

• Community of knowing God: “they will all know Me” inspires mutual encouragement (Hebrews 10:24-25).

• Mission: sharing the covenant’s blessing fulfills Jesus’ great commission (Matthew 28:18-20).

Hebrews 10:15 stands as the Spirit’s own commentary that Jeremiah 31:33-34 is now reality in Christ—God’s law within, sins forgotten, covenant secured for all who believe.