Man knoweth not the price thereof - The word rendered "price" (ערך ‛êrek) means properly that which is set in a pile or row, or which is arranged in order. Here it means preparation, equipment - that is, anything put in order, or ready, Judges 17:10. It is also used in the sense of estimation or valuation, Leviticus 5:15, Leviticus 5:18. The word "price" here, however, seems to form no proper answer to the question in the previous verse, as the question is, "where" wisdom is to be found, not what is its "value." Many expositors have, therefore, introduced a different idea in their interpretation. Dr. Good renders it, "Man knoweth not its source." Prof. Lee, "Man knoweth not its equal." Herder, "Man knoweth not the seat thereof." Coverdale, "No man can tell how worthy a thing she is." The Septuagint renders it, "Man knoweth not - όδὸν άυτῆς hodon autēs - her way." But the word used here is not employed to denote a "place" or "way," and the true interpretation doubtless is, that Job does not confine himself to a strict answer of the question proposed in Job 28:12, but goes on to say that man could not buy it; he could neither find it, nor had he the means of purchasing it with all the wealth of which he was the owner.
Neither is it found in the land of the living - That is, it is not found among human beings. We must look to a higher source than man for true wisdom; compare Isaiah 38:11; Isaiah 53:8.

Man knoweth not the price thereof - It is of infinite value; and is the only science which concerns both worlds. Without it, the wisest man is but a beast; with it, the simplest man is next to an angel.
Neither is it found in the land of the living - The world by wisdom, its wisdom, never knew God. True religion came by Divine revelation: that alone gives the true notion of God, his attributes, ways, designs, judgments, providences, etc., whence man came, what is his duty, his nature, and his end. Literature, science, arts, etc., etc., can only avail man for the present life, nor can they contribute to his true happiness, unless tempered and directed by genuine religion.

Man knoweth not (i) the price thereof; neither is it found in the land of the living.
(i) It is too high a thing for man to attain to in this world.

Man knoweth not the price thereof,.... The worth and value of it, what price to set upon it, or offer and give for it; nor does he know where to find an equivalent to it, or what is a valuable consideration for it: as for the wisdom of God in his dealings with men, if a man was to give all the substance of his house to know the secret reasons of them, it would utterly be condemned; yea, if he had all the riches in the world in his possession, and would offer them on that consideration, he would not be able to attain the knowledge of them: or "the order thereof" (o); the order of divine Providence, the wise disposal of thing, and the reasons thereof. In the first sense it is applicable to all the things before mentioned; to spiritual wisdom in men, supernatural grace, experimental religion, and real godliness; the worth of which is not known by carnal men, they despise it, and scoff at it; and to the Gospel, which is reckoned foolishness by them, and is of no account; and so is Christ himself rejected and disallowed of men, though chosen of God, and precious both to him and them that believe, who only know the price and value of him:
neither is it found in the land of the living; meaning not wisdom, though that in every sense is not from below, or earthly, but from above, and heavenly, but the price of it; and the sense is, that there is nothing in the whole globe that is equal to its worth, or can be proposed as a valuable consideration for it.
(o) "ordinem ejus", Montanus, Bolducius.

Man can fix no price upon it, as it is nowhere to be found in man's abode (Isaiah 38:11). Job implies both its valuable worth, and the impossibility of buying it at any price.

13 A mortal knoweth not its price,
And it is not found in the land of the living.
14 The abyss saith: It is not in me,
And the sea saith: It is not with me.
15 Pure gold cannot be given for it,
And silver cannot be weighed as its price;
16 And it is not outweighed with fine gold of Ophir,
With the precious onyx and the sapphire.
It is self-evident that wisdom is found nowhere directly present and within a limited space, as at the bottom of the sea, and cannot be obtained by a direct exchange by means of earthly treasures. It is, moreover, not this self-evident fact that is denied here; but the meaning is, that even if a man should search in every direction through the land of the living, i.e., (as e.g., Psalm 52:7) the world - if he should search through the תּהום, i.e., the subterranean waters that feed the visible waters (vid., Genesis. 39:25) - if he should search through the sea, the largest bounded expanse of this water that wells up from beneath - yea, even if he would offer all riches and precious things to put himself in possession of the means and instruments for the acquirement of wisdom, - wisdom, i.e., the profoundest perception of the nature of things, would still be beyond him, and unattainable. ערך, Job 28:13, an equivalent (from ערך, to range beside, to place at the side of), interchanges with מחיר (from מחר, cogn. מהר, מכר, mercari). סגור is זהב סגוּר, 1-Kings 6:20 and freq., which hardly signifies gold shut up = carefully preserved, rather: closed = compressed, unmixed; Targ. דּהב סנין, aurum colatum (purgatum). Ewald compares Arab. sajara, to seethe, heat; therefore: heated, gained by smelting. On the other hand, כּתם from כתם, Arab. ktm, occulere, seems originally to denote that which is precious, then precious gold in particular, lxx χρυσίῳ Ωφείρ, Cod. Vat. and Cod. Sinaiticus, Σωφίρ (Egyptized by prefixing the Egyptian sa, part, district, side, whence e.g., sa-rees, the upper country, and sa-heet, the lower country, therefore = sa-ofir, land of Ophir). שׁהם is translated here by the lxx ὄνυξ (elsewhere σαρδόνυξ or σάρδιος), of which Pliny, h. n. xxxvii. 6, 24, appealing to Sudeines, says, in gemma esse candorem unguis humanii similitudinem; wherefore Knobel, Rdiger, and others, compare the Arab. sâhim, which, however, does not signify pale, but lean, and parched by the heat, with which, in hot countries at least, not pallor, but, on the contrary, a dark brown-black colour, is identified (Fl.). Arab. musahham, striped (Mich.), would be more appropriate, since the onyx is marked through by white veins; but this is a denom. from sahm, a dart, prop. darted, and is therefore wide of the mark. On the etymology of ספּיר, vid., Jesurun, p. 61. Nevertheless both שׁהם and ספּיר are perhaps foreign names, as the name of the emerald (vid., ib. p. 108), which is Indian (Sanskr. marakata, or even marakta); and, on the other hand, it is called in hieroglyph (determined by the stone) uot, the green stone (in Coptic p. auannēse, the green colour) (Lauth).
The transcendent excellence of wisdom above the most precious earthly treasures, which the author of the introduction to the book of Proverbs briefly describes, Job 3:14, is now drawn out in detail.

Found - Among men upon earth, but only among those blessed spirits that dwell above.