Genesis 30:37-39

Verse 37

Rods of green poplar - לבנה לח libneh lach. The libneh is generally understood to mean the white poplar; and the word lach, which is here joined to it, does not so much imply greenness of color as being fresh, in opposition to witheredness. Had they not been fresh - just cut off, he could not have pilled the bark from them.

And of the hazel - לוז luz, the nut or filbert tree, translated by others the almond tree; which of the two is here intended is not known.

And chestnut tree - ערמון armon, the plane tree, from ערם aram, he was naked. The plane tree is properly called by this name, because of the outer bark naturally peeling off, and leaving the tree bare in various places, having smooth places where it has fallen off. A portion of this bark the plane tree loses every year. The Septuagint translate it in the same way, πλατανος· and its name is supposed to be derived from πλατυς, broad, on account of its broad spreading branches, for which the plane tree is remarkable. So we find the Grecian army in Homer, Il. ii., ver. 307, sacrificing καλῃ ὑπο πλατανιστῳ, under a beautiful plane tree. Virgil, Geor. iv. 146, mentions, - ministrantem platanum potantibus umbras.

The plane tree yielding the convivial shade.

And Petronius Arbiter in Satyr.: -

Nobilis aestivas platanus diffuderat umbras. "The noble plane had spread its summer shade."

See more in Parkhurst. Such a tree would be peculiarly acceptable in hot countries, because of its shade.

Pilled white streaks in them - Probably cutting the bark through in a spiral line, and taking it off in a certain breadth all round the rods, so that the rods would appear party-colored, the white of the wood showing itself where the bark was stripped off.
Verse 38

And he set the rods which he had pilled before the flocks - It has long been an opinion that whatever makes a strong impression on the mind of a female in the time of conception and gestation, will have a corresponding influence on the mind or body of the fetus. This opinion is not yet rationally accounted for. It is not necessary to look for a miracle here; for though the fact has not been accounted for, it is nevertheless sufficiently plain that the effect does not exceed the powers of nature; and I have no doubt that the same modes of trial used by Jacob would produce the same results in similar cases. The finger of God works in nature myriads of ways unknown to us; we see effects without end, of which no rational cause can be assigned; it has pleased God to work thus and thus, and this is all that we know; and God mercifully hides the operations of his power from man in a variety of eases, that he may hide pride from him. Even with the little we know, how apt are we to be puffed up! We must adore God in a reverential silence on such subjects as these, confess our ignorance, and acknowledge that nature is the instrument by which he chooses to work, and that he performs all things according to the counsel of his own will, which is always infinitely wise and infinitely good.
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