Genesis 30:40

40 Jacob placed the ewes before the dark-colored animals of Laban. That way he got distinctive flocks for himself which he didn't mix with Laban's flocks.

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 He stuck the peeled branches in front of the watering troughs where the flocks came to drink. When the flocks were in heat, they came to drink

39 and mated in front of the streaked branches. Then they gave birth to young that were streaked or spotted or speckled.

40 Jacob placed the ewes before the dark-colored animals of Laban. That way he got distinctive flocks for himself which he didn't mix with Laban's flocks.

41 And when the sturdier animals were mating, Jacob placed branches at the troughs in view of the animals so that they mated in front of the branches.

42 But he wouldn't set up the branches before the feebler animals. That way the feeble animals went to Laban and the sturdy ones to Jacob.