Genesis 30:37–43

³⁷Then Jacob took fresh branches of poplar, almond, and plane trees and peeled white strips on them, exposing the white which was on the branches. ³⁸And he set the branches that he had peeled in front of the flocks, in the troughs that were in the water containers, where the flocks came to drink. And they were in heat when they came to drink. ³⁹And the flocks mated by the branches, so the flocks bore streaked, speckled, and spotted. ⁴⁰And Jacob separated the lambs and turned the faces of the flocks toward the streaked and all the dark-colored in Laban’s flocks. And he put his own herds apart, and did not put them with the flocks of Laban. ⁴¹And whenever any of the stronger of the flocks were in heat, Jacob put the branches in full view^l of the flock in the troughs that they might mate among the branches. ⁴²But with the more feeble of the flock he would not put them there. So the feebler were Laban’s and the stronger were Jacob’s. ⁴³And the man became exceedingly^m rich and had large flocks, female slaves, male slaves, camels, and donkeys.