You used to walk in these ways, in the life you once lived. But now you must also rid yourselves of all such things as these: anger, rage, malice, slander, and filthy language from your lips. Do not lie to each other, since you have taken off your old self with its practices and have put on the new self, which is being renewed in knowledge in the image of its Creator. Here there is no Gentile or Jew, circumcised or uncircumcised, barbarian, Scythian, slave or free, but Christ is all, and is in all. (Colossians 3:7-11)
When accept our gift of salvation, we commit to a journey of shedding our old self. As we put on our new selves, we see Christ is all, and is in all.