God's Word tells us that we are in one in spirit, both the Greek, the Jew, and the slave. That pretty much covers everyone. This passage also speaks to some very difficult racial tensions that the early church had to navigate to become one. The Greeks remain Greeks, and the slaves remained slaves. However, they learned how to have church together and celebrated the different gifts that the spirit gave within their midst. The church was successful because even though it had diversity, it also had unity.