Jesus is the vine and we are the many branches. The class distinctions of the world are no longer applicable to us. We are no longer of this world. This world was where our parents brought about our births. But we have been born of the Spirit of God.
Colour means nothing any more.
Colour of skin came from the tower of Babel when God separated people under different languages. Our bodies are the only part of us that have not yet been affected by the cross of Jesus. The Bible teaches that the redemption of our bodies was already paid for by the blood of Jesus, but will not be fulfilled until Gabriel sounds the trumpet. At that moment we will be changed in a moment. Since we are all one Body and all partook of the same bread and wine, the same flesh and blood of Jesus, we died with Him.