What does the Bible say about the oneness of true believers?

In Ephesians 4:4-6, Paul emphasizes the oneness of believers by stating that there is one body, one spirit, one hope, one Lord, one faith, one baptism, and one God. This teaching highlights that true believers, who are regenerated by the Holy Spirit, are part of the same universal church, known as the body of Christ. This unity is not superficial but grounded in the essential truths of our faith, which are vital for our identity as Christians. True believers are not just part of a local congregation but belong to the greater church of God that transcends all denominations and divisions. Their oneness is a reflection of the unity shared between Christ and God the Father.