Col 3:10~11 And have put on the new man... Where there cannot be Greek and Jew, circumcision and uncircumcision, barbarian, Scythian, slave, free man, but Christ is all and in all. 1 Cor 12:12 For even as the body is one and has many members, yet all the members of the body, being many, are one body, so also is the Christ.
The word where, [v. 11 above] referring to the new man in verse 10, means in the new man. There is no natural person in the new man.
Furthermore, there is no possibility, no room, for any natural person. There cannot be Greeks, who are for philosophical wisdom, and Jews, who are for miraculous signs (1 Cor. 1:22).
There cannot be circumcision and uncircumcision. Circumcision refers to the observers of the Jewish religious rituals; uncircumcision refers to those who do not care for the Jewish religion. Furthermore, in the new man there cannot be barbarian, Scythian, slave, or freeman.
A barbarian is an uncultured person, the Scythians were considered the most barbarous people, the slaves were those sold into slavery, and the freemen were those who had been freed from slavery. No matter what kind of person we may be, as far as the new man is concerned, we must regard ourselves as nobodies. In the new man there is room only for Christ, not for any kind of natural person.
Therefore, in the church we all are nobodies. In the new man "Christ is all and in all."; In the new man there is room only for Christ. He is all the members of the new man and in all the members.
He is everything in the new man. Actually, He is the new man, His Body (1 Cor. 12:13).
In the new man Christ is the centrality and universality.