Genesis 30:32–39
32 let me pass through all your flock today, removing from it every speckled and spotted sheep and every black lamb, and the spotted and speckled among the goats, and vthey shall be my wages. 33 So my honesty will answer for me later, when you come to look into my wages with you. Every one that is not speckled and spotted among the goats and black among the lambs, if found with me, shall be counted stolen.” 34 Laban said, “Good! Let it be as you have said.” 35 But that day Laban removed the male goats that were striped and spotted, and all the female goats that were speckled and spotted, every one that had white on it, and every lamb that was black, and put them in the charge of his sons. 36 And he set a distance of three days’ journey between himself and Jacob, and Jacob pastured the rest of Laban’s flock.
37 Then wJacob took fresh sticks of poplar and almond and plane trees, and peeled white streaks in them, exposing the white of the sticks. 38 He set the sticks that he had peeled in front of the flocks in the troughs, that is, the xwatering places, where the flocks came to drink. And since they bred when they came to drink, 39 the flocks bred in front of the sticks and so the flocks brought forth striped, speckled, and spotted.