In [this video](https://youtu.be/NYXZQ9BRiGw?si=Aho7ezGrcCPKuvC0&t=616) , former KKK Grand Imperial Wizard Bill Wilkinson says that "we believe that God has commanded us to separate ourselves from the other races. Not because we hate the other races or because we feel we are better or worse, but because it's God's commandment". According to the KKK interpretation of Christian law, where, in the scriptures or in other sources of Christian religious law, does God command the whites to separate themselves from other races?