Jesus died for it.
Revelation 5:9-10 And they sang a new song, saying, "Worthy are you to take the scroll and to open its seals, for you were slain, and by your blood you ransomed people for God from every tribe and language and people and nation, and you have made them a kingdom and priests to our God, and they shall reign on the earth."Heaven will be gloriously, beautifully diverse in its God-centered unity.
Revelation 7:9-10 After this I looked, and behold, a great multitude that no one could number, from every nation, from all tribes and peoples and languages, standing before the throne and before the Lamb, clothed in white robes, with palm branches in their hands, and crying out with a loud voice, "Salvation belongs to our God who sits on the throne, and to the Lamb!"I'd encourage you to watch the following video where John Piper asks Pastors Stephen Um and Trip Lee if every church must be multi-ethnic. If you want God's kingdom to come, and his will to be done, on earth as it is in heaven (Matthew 6:10), let's all embrace our responsibility (and opportunities!) to help Bethel become a better foretaste of Heaven.
Must Every Church Be Multi-ethnic? from The Gospel Coalition on Vimeo.