“The gospel is universal in its logic, but this is a logic that unifies disparate things—without destroying who and what they are. Humanist globalism wants international unity, and drives for this by throwing everything into a statist blender. But when Christ unites male and female, for example, He doesn’t erase the categories we see in Galatians 3:28. They are unified in love, not pureed into a light brown paste. The resurrection will see us gather from every tribe and language and people and nation, all while remaining in a glorified version of what we are (Rev. 5:9).” — Douglas Wilson, Israel, Iran, and Good Old Vermont
The holy, catholic church is a unified diversity. Members are made one without doing violence to their distinctives. They can live in different places at different times and be of different stock and different genders, yet they are one in Christ. Jesus has only one bride. He is not an adulterer. Just as a man and woman become one flesh without doing violence to their respective fleshes, so the world will become one without whitewashing everything into a monochromatic oblivion. Nations will remain distinct without remaining at war.
"It is a wild folly to suppose that nations will love each other because they are alike. They will never really do that unless they are really alike; and then they will not be nations. Nations can love each other as men and women love each other, not because they are alike but because they are different." — G.K. Chesterton, What I Saw In America (1921)
A man respects another man for honoring his father because he is already honoring his own. He may not have much in common with the other man's father, and in fact their fathers may have been at odds with each other, but he has something in common with the man in front of him trying to honor his own. He does not need his friend to love his mother the way he does, but he does expect his friend to love his own mother the way he loves his. In other words, distinctives do not have to divide down to the marrow the way they do on the surface. A man's eyes can be connected to the same brain without them needing to touch on the surface. They serve the same purpose for the same body, yet they never come into contact with each other unless something terrible has taken place. In the same way, there are distinctives that will faithfully remain distinct forever. A man will live as a resurrected man and a woman will walk as a resurrected woman. Eternity is not some androgynous compromise of gender, generations, or nations. Each will carry its own divine distinctives and as such, we will all enjoy and honor all of them either by way of wearing them or by seeing them worn well on others.