You asked

how does this idea of 'breaking down walls' connect with old testament prophecies of a unified people?

Adds the setting and its conversation across both testaments.

Ephesians 2:14-16

“For he is our peace, who made both one, and broke down the middle wall of partition, having abolished in his flesh the hostility, the law of commandments contained in ordinances, that he might create in himself one new man of the two, so making peace; and might reconcile them both in one body to God through the cross, having killed the hostility thereby.”

The Apostle Paul wrote this letter to the church in Ephesus, likely in the mid-1st century CE while he was imprisoned. He is explaining how Jesus' life, death, and resurrection have profoundly reshaped human relationships, especially between Jews and Gentiles.

What old divisions might Jesus be calling us to overcome today?

Then — the setting

Paul is writing from prison, likely in Rome, around 60-62 CE, to Gentile and Jewish believers in Ephesus (a major Roman city in Asia Minor). The 'middle wall of partition' (Greek: μεσότοιχον τοῦ φραγμοῦ) likely refers to both the literal barrier in the Jerusalem Temple that separated the Court of the Gentiles from the inner courts where Jews worshipped (often with inscriptions warning Gentiles not to pass under penalty of death) and the metaphorical barrier of the Mosaic Law, which distinguished Jew from Gentile and often fostered animosity between the two groups. Paul is addressing a community grappling with what it means for people from vastly different backgrounds—religious, cultural, and social—to be united in one body.

Across the Testaments

This passage, from the New Testament, speaks of Jesus creating 'one new man' out of two previously distinct groups (Jew and Gentile). This powerfully connects with Old Testament prophecies that envision a future where God's people would not be confined to Israel alone, but would include people from all nations (e.g., Isaiah 2:2-4, Zechariah 8:20-23). While the Old Testament often emphasizes Israel's distinctiveness and calling, it also contains a thread of universal hope, that through Israel, God's blessing would extend to all peoples (Genesis 12:3). Paul argues that Jesus fulfills this universal dimension, breaking down the specific barriers that arose from the Law to unite humanity, not by erasing distinct identities, but by creating a new, shared identity in Christ.

Keep thinking

Read alongside it

Isaiah 2:2-4
Prophesies a future where all nations stream to God's mountain for instruction and peace.
Galatians 3:28
Declares that in Christ, traditional social and ethnic distinctions like Jew/Gentile, slave/free, male/female lose their divisive power.
Colossians 3:11
Echoes the theme of new identity in Christ, where ethnic or social status is secondary to Christ being 'all, and in all'.

Ask your own follow-up