Genesis 30:40 - Exposition

And Jacob did separate the lambs ( i . e . the speckled lambs procured by the foregoing artifice he removed from the main body of the flock), and set the faces of the flocks toward the ringstraked, and all the brown in the flock of Laban (this was Jacob's second artifice, to make the speckled lambs serve the same purpose as the pilled rods); and he put his own flocks by themselves, and put them not unto Laban's cattle —so that they were not exposed to the risk of producing offspring of uniform color.