Genesis 30:41

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. "to conceive it (the young);" - but not "in the weakening of the sheep," i.e., when they were weak, and would produce weak lambs. The meaning is probably this: he only adopted this plan at the summer copulation, not the autumn; for, in the opinion of the ancients (Pliny, Columella), lambs that were conceived in the spring and born in the autumn were stronger than those born in the spring (cf. Bochart l.c. p. 582). Jacob did this, possibly, less to spare Laban, than to avoid exciting suspicion, and so leading to the discovery of his trick. - In Gen 30:43 the account closes with the remark, that the man increased exceedingly, and became rich in cattle (רבּות צאן many head of sheep and goats) and slaves, without expressing approbation of Jacob's conduct, or describing his increasing wealth as a blessing from God. The verdict is contained in what follows.

In this chapter we have an account of the increase, I. Of Jacob's family. Eight children more we find registered in this chapter; Dan and Naphtali by Bilhah, Rachel's maid (Gen 30:1-8). Gad and Asher by Zilpah, Leah's maid (Gen 30:9-13). Issachar, Zebulun, and Dinah, by Leah (Gen 30:14-21). And, last of all, Joseph, by Rachel (Gen 30:22-24). II. Of Jacob's estate. He makes a new bargain with Laban (Gen 30:25-34). And in the six years' further service he did to Laban God wonderfully blessed him, so that his stock of cattle became very considerable (Gen 30:35-43). Herein was fulfilled the blessing with which Isaac dismissed him (Gen 28:3), "God make thee fruitful, and multiply thee." Even these small matters concerning Jacob's house and field, though they seem inconsiderable, are improvable for our learning. For the scriptures were written, not for princes and statesmen, to instruct them in politics; but for all people, even the meanest, to direct them in their families and callings: yet some things are here recorded concerning Jacob, not for imitation, but for admonition.