(40) Jacob . . . set the faces of the flocks toward . . . --As the speckled lambs and kids would for some time remain with Labau's flocks, this may perhaps mean that, when driving them to water, Jacob placed all the striped kids and dark lambs together, that, by being in a mass, they might work upon the imagination of the ewes and she-goats. Finally, after these had conceived he drove the parti-coloured young away to his own flocks.

Verse 40. - 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.

30:25-43 The fourteen years being gone, Jacob was willing to depart without any provision, except God's promise. But he had in many ways a just claim on Laban's substance, and it was the will of God that he should be provided for from it. He referred his cause to God, rather than agree for stated wages with Laban, whose selfishness was very great. And it would appear that he acted honestly, when none but those of the colours fixed upon should be found among his cattle. Laban selfishly thought that his cattle would produce few different in colour from their own. Jacob's course after this agreement has been considered an instance of his policy and management. But it was done by intimation from God, and as a token of his power. The Lord will one way or another plead the cause of the oppressed, and honour those who simply trust his providence. Neither could Laban complain of Jacob, for he had nothing more than was freely agreed that he should have; nor was he injured, but greatly benefitted by Jacob's services. May all our mercies be received with thanksgiving and prayer, that coming from his bounty, they may lead to his praise.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, &c. 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.