Genesis 30:40

40 And 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.

Genesis 30:40 Meaning and Commentary

Genesis 30:40

And Jacob did separate the lambs
The ringstraked, speckled, and spotted; and set the faces of the flocks,
that were all white, towards the ringstraked, and all the brown in the flock of Laban;
either to go before those that were all white, that they by looking at them might conceive and bring forth such, which was another artifice of Jacob's to increase his own sheep; or else he set at the water troughs the white sheep on one side of them, and on the opposite side the speckled ones that the same effect might also be produced the more successfully both by the rods and by the speckled lambs: and he put his own flocks by themselves, and put them not unto Laban's
cattle;
partly that they might not be mixed together, but kept distinct, that what was his property might be discerned from Laban's; and partly, lest his spotted ones, being mixed with Laban's white sheep, by continual looking at them, should conceive and bring forth such likewise, and so his flocks be lessened.

Genesis 30:40 In-Context

38 And he set the branches that he had peeled in front of the flocks, in the troughs [and] in the water containers. And they were in heat when they came to drink.

39 And the flocks mated by the branches, so the flocks bore streaked, speckled, and spotted.

40 And 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.

41 And whenever any of the stronger of the flocks were in heat, Jacob put the branches {in full view} of the flock in the troughs that they might mate among the branches.

42 But 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.