Therefore remember that you, once Gentiles in the flesh (Eph. 2:11)
The import of this statement by Paul in that day cannot be underestimated. Paul was speaking of these converts as former gentiles. Its common today among folks who continue to foster ethnic and racial division within Christs body to refer to believers as gentile Christians or Hebrew Christians. Some of the more hardcore even go so far as to claim that the very name Christian is really a gentile invention, to be used only of gentiles, and that Christianity is somehow a purely gentile religion.
Nonsense. Those suggestions are patently false. We are no longer gentiles in the flesh or even Israel after the flesh (cf. 1 Cor. 10:18). We are one body, one flesh, under one Savior and Lord, Jesus Christ.
We are the temple of the Holy Spirit, the true dwelling place of God. We should no longer be content referring to one another with racial labels. It breeds division, something the apostle Paul fought long and hard against.