9 Do not lie to one another, since you have put off the old man with his deeds, 10 and have put on the new man who is renewed in knowledge according to the image of Him who created him, 11 where there is neither Greek nor Jew, circumcised nor uncircumcised, barbarian, Scythian, slave nor free, but Christ is all and in all. (Colossians 3:9–11, NKJV)
The Christian is described as a new creation in Christ (2 Cor. 5:17). Conversion to Christ includes a deliberate decision of faith to put away the sins that defined the old person of sin with its deeds and to put on the new person who is in the image of Christ (Col. 3:9-10). Notably, being a new person in Christ is defined by a new way of life, one that ceases the practice of sin and practices righteousness (Col. 3:1-9, 12-17). Being a new person in Christ is not defined by culture (neither Greek nor Jew), previous religious traditions (circumcised nor uncircumcised), ethnicity and race (barbarian, Scythian), or social strata (slave nor free). All of these are in Christ, and yet Christ is not limited by any such things. The gospel is for all the world because all have sinned (Mk. 16:15; Rom. 1:16; 3:23). It is very wrong to look through the lens of race, ethnicity, social strata, human traditions, or any other humanly devised label to identify those who belong to Christ. Scripture says, “for you are all one in Christ Jesus” (Gal. 3:28). Christians ought to act like it and never be driven by prejudices of the heart.