The Book of Enoch, Chapter 4: Visions

> 53 And they began to bite one another; but that white bull which was born amongst them begat a wild ass and a white bull with it, and the wild asses multiplied. But that bull which was born from him begat a black wild boar and a white sheep; and the former begat many boars, but that sheep begat twelve sheep.

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> 54 And when those twelve sheep had grown, they gave up one of them to the asses, and those asses again gave up that sheep to the wolves, and that sheep grew up among the wolves.

This refers to the wars that broke out between the offspring of Noah. The white was the root of the tribes of Israel, the asses (donkeys) were the leaders of Israel, specifically referring to Joseph, the first central banker. Note that as hybrids, the asses were sterile to each other, crossing horse and donkey. And the wolves leading the sheep is the nation of Israel, this symbol of wolves in sheep's clothing is a symbol of the masquerade of psychopaths among normal, peaceful humans.