Genesis 30:37–43

³⁷And Jacob took fresh rods of white poplar, almond-tree, and maple; and peeled off white stripes in them, uncovering the white which was on the rods. ³⁸And he set the rods which he had peeled before the flock, in the troughs at the watering-places where the flock came to drink, and they were ardent when they came to drink. ³⁹And the flock was ardent before the rods; and the flock brought forth ringstraked, speckled, and spotted. ⁴⁰And Jacob separated the lambs, and set the faces of the flock toward the ringstraked, and all the brown in the flock of Laban; and he made himself separate flocks, and did not put them with Laban’s flock. ⁴¹And it came to pass whensoever the strong cattle were ardent, that Jacob laid the rods before the eyes of the flock in the gutters, that they might become ardent among the rods; ⁴²but when the sheep were feeble, he put them not in; so the feeble were Laban’s, and the strong Jacob’s. ⁴³And the man increased very, very much, and had much cattle, and bondwomen, and bondmen, and camels, and asses.