You asked

how does this idea of 'oneness' relate to or contrast with other biblical calls for social justice?

Adds the setting and its conversation across both testaments.

John 17:20-23

“Not for these only do I pray, but for those also who believe in me through their word, that they may all be one; even as you, Father, are in me, and I in you, that they also may be one in us; that the world may believe that you sent me. The glory which you have given me I have given to them; that they may be one, even as we are one; I in them, and you in me, that they may be perfected into one; that the world may know that you sent me, and loved them, even as you loved me.”

This passage is part of Jesus' farewell discourse in John's Gospel, delivered shortly before his crucifixion. He is praying for his disciples and for all future believers, expressing his deepest desires for their unity and purpose.

What practical steps might foster this kind of 'oneness' within a divided world, and how might that unity then serve broader justice?

Then — the setting

This prayer from John's Gospel, likely written in the late 1st century CE, reflects a community already experiencing internal and external pressures. The early Christian movement was a diverse group, including Jews and Gentiles, rich and poor, enslaved and free, trying to forge a new identity distinct from both the Roman Empire and the Jewish synagogue. The 'oneness' Jesus prays for would have resonated deeply with the challenges of maintaining cohesion amidst differing backgrounds, beliefs about Jewish law, and the threat of persecution. It's a prayer for unity not just for the immediate disciples, but for all who would come to believe, underscoring the enduring significance of community for the burgeoning movement.

Across the Testaments

In the Old Testament, 'oneness' often referred to the unity of Israel as God's chosen people, bound by covenant and law (e.g., Deuteronomy 6:4, 'The LORD our God, the LORD is one'). This unity was intrinsically linked to their national identity and their distinctiveness among nations. In the New Testament, particularly in John 17, Jesus' prayer redefines and expands this concept of oneness. It moves from an ethnic or national unity to a spiritual and relational unity, modeled on the relationship between the Father and the Son, transcending previous social and religious boundaries. While the Old Testament prophets often called for justice *within* the unified covenant community (e.g., Amos, Isaiah), Jesus' prayer in John frames 'oneness' as the very mechanism through which the 'world may believe' and 'know' God's love. This suggests that the internal unity of believers is a prerequisite and testimony for the external mission of sharing God's love and enacting justice in the world.

Keep thinking

Read alongside it

Galatians 3:28
Highlights a radical social equality and unity in Christ, transcending traditional divisions.
Ephesians 4:1-3
Exhorts believers to live in unity, peace, and humility as a practical outworking of their faith.
Psalm 133:1
Praises the goodness and pleasantness of brothers and sisters living together in unity.

Ask your own follow-up