'Black' in the Bible

Jacob responded, "You don't have to give me anything. Just do this for me: Let me tend your flock again and watch over it. Let me walk among your flocks today and remove every speckled or spotted sheep, along with every black lamb, and let me do the same with the speckled and spotted goats. These will be my wages.

In the future, you'll be able to verify my honesty because, when you come to check what I've earned, if you find a goat that's not speckled or spotted or a sheep that's not black, then it will have been stolen by me."

That very day, Laban removed the male goats that were striped or spotted, all the female goats that were speckled or spotted that is, every one that had white on them and all the black lambs and placed them into the care of his sons.

Jacob kept the lambs separate, facing the striped and entirely black ones that belonged to Laban's flock. He set his own herd by itself and would not let them be with Laban's flock.