White skin is good and "delightsome"; black skin is bad and "loathsome". In fact, God created dark skin just to punish people for their bad behavior.
And he had caused the cursing to come upon them, yea, even a sore cursing, because of their iniquity ... wherefore, as they were white, and exceedingly fair and delightsome, that they might not be enticing unto my people the Lord God did cause a skin of blackness to come upon them. And thus saith the Lord God: I will cause that they shall be loathsome unto thy people. 2 Nephi 5:21-22This color-coding scheme was designed by God to separate the good from the bad and to keep them forever separate. God will curse the children that result from any "seed mixing".
And cursed shall be the seed of him that mixeth with their seed; for they shall be cursed even with the same cursing. And the Lord spake it, and it was done. 2 Nephi 5:23And the difference between the races is much more than skin deep. God not only darkened the skin of people of color; he made them lazy, wild, and mischievous, as well.
And because of their cursing which was upon them they did become an idle people, full of mischief and subtlety, and did seek in the wilderness for beasts of prey. 2 Nephi 5:24
[But people of color shouldn't give up all hope. God's curse can be undone, at least in certain circumstances. An especially well-behaved dark-skinned person may become white and delightsome again! (See 3 Nephi 2:14-16)]
And readers of this blog should take note: God may cause your skin to darken if you spend your time dwindling in unbelief.
And the angel said unto me: Behold these shall dwindle in unbelief. And it came to pass that I beheld, after they had dwindled in unbelief they became a dark, and loathsome, and a filthy people, full of idleness and all manner of abominations. 1 Nephi 12:22-23But then, that might not be such a bad thing. You'll be loathsome, filthy, lazy, and abominable to God, but you'll get a nice, safe tan out of it!