but for the feebler of the flock he would not lay them there. So the feebler would be Laban’s, and the stronger Jacob’s.
Here is Jacob's honest policy to make his bargain more advantageous to himself than it was likely to be. If he had not taken some course to help himself, it would have been a bad bargain indeed, which he knew Laban would never consider, or rather would be well pleased to see him a loser by, so little did Laban consult any one's interest but his own.
Commenting on Genesis 30:37-43
JACOB'S COVENANT WITH LABAN. (Gen. 30:25-43) when Rachel had born Joseph--Shortly after the birth of this son, Jacob's term of servitude expired, and feeling anxious to establish an independence for his family, he probably, from knowing that Esau was out of the way, announced his intention of returning to Canaan (Heb 13:14).
Commenting on Genesis 30:25-43
Gen 30:41-43 He did not adopt the trick with the rods, however, on every occasion of copulation, for the sheep in those countries lamb twice a year, but only at the copulation of the strong sheep (המקשּׁרות the bound ones, i.e., firm and compact), - Luther, “the spring flock;” ליחמנּה inf. Pi.
Commenting on Genesis 30:41-43