What does the Bible say about the church being diverse?

In Ephesians 2:12-20, Paul emphasizes that Christ has brought together people from different backgrounds—Jew and Gentile—into one new humanity through His sacrifice. This unification under the blood of Christ transcends cultural and socio-economic divides, illustrating that the church isn't shaped by natural selection but by God’s grace. Similarly, Galatians 3:28 declares that in Christ, there is no division based on ethnicity, social status, or gender, highlighting the church's rich diversity. Such diversity not only reflects the beauty of God's creation but also demonstrates the profound reconciliation that the gospel achieves among disparate groups.