I will put enmity ... between thy seed and her seed. -- Genesis 3:15
In Christian Identity theology, Genesis 3:15 is considered to be the most important verse in the Bible.
The serpent's seed includes the Jews and all non-white people; Adam's seed refers to white people only.
Cain was the son of the serpent and Eve, and, after he murdered his half-brother Abel, intermarried with the Pre-Adamic people of color in the land of Nod. All non-white humans are descended from Cain.
After Abel died, Seth was born to Adam and Eve and became the ancestor of all white people.
The serpent's seed (Jews and non-white people) are evil; Adam's seed (white folks) are good. And God forever "put enmity" between them in Genesis 3:15.