There is no longer Jew or Gentile, slave or free, male and female. For you are all one in Christ Jesus.
Gal. 3:28 NLT
Christian unity is not about what materially we have in common, but it is about the person, Jesus Christ, who has made us one by forgiveness of sins, renewal of spirit, and transformation of heart.
What binds us together is not common education, common race, common income levels, common politics, common nationality, common accents, common jobs, or anything else of that sort. Christians come together because they have all been loved by Jesus himself. They are a band of natural enemies who love one another for Jesus’ sake.
D. A. Carson, Love in Hard Places (Wheaton, IL: Crossway, 2002), 61.