Genesis 30:31-34

31So Laban asked, “What should I give you?” “You don’t need to give me a thing,” Jacob replied, “but if you agree to this one condition, I will continue to care for your flocks and protect them:

32Let me walk among all your flocks today and remove from them every speckled or spotted sheep, every dark-colored lamb, and the spotted or speckled goats. These animals will be my wages.

33My integrity will testify for me later on. When you come to verify that I’ve taken only the wages we agreed on, if I have in my possession any goat that is not speckled or spotted or any sheep that is not dark-colored, it will be considered stolen.”

34“Agreed!” said Laban, “It will be as you say.”