Genesis 30:40-42

Contemporary English Version

⁴⁰ Some of the sheep that Jacob was keeping for Laban were already spotted. And when the others were ready to mate, he made sure that they faced in the direction of the spotted and black ones. In this way, Jacob built up a flock of sheep for himself and did not put them with the other sheep.

⁴¹ When the stronger sheep were mating near the drinking place, Jacob made sure that the spotted branches were there. ⁴² But he would not put out the branches when the weaker animals were mating. So Jacob got all of the healthy animals, and Laban got what was left.