Job 28:15

“It cannot be gotten for gold, etc.] Having in general said that there is nothing in the whole compass of the terraqueous globe, nothing that is upon the surface of the earth, or in the bowels of it, or in the vast ocean, that is an equivalent price for wisdom, Job descends to particulars, and instances first in gold, that being the most valuable of metals; the word here used for it signifies “shut up” f979, because it is first shut up in the earth, out of which it is dug, and when taken from thence, and refined, and made into coins or vessels, it is shut up among the treasures of men; the words may be more literally rendered, “gold shall not be given instead of it” f980; as a sufficient…”

“Not the usual word for "gold"; from a Hebrew root, "to shut up" with care; that is, purest gold (Kg1 6:20, Margin). weighed--The precious metals were weighed out before coining was known (Gen 23:16).”

“It cannot be gotten for gold - Margin, “fine gold shall not be given for it.” The word which is here rendered “gold.” and in the margin “fine gold” (סגור segôr), is not the common word used to denote this metal. It is derived from סגר sâgar, to “shut,” to “close,” and means properly that which is “shut up” or “enclosed;” and hence, Gesenius supposes it means pure gold, or the most precious gold, as that which is shut up or enclosed with care. Dr. Good renders it “solid gold,” supposing it means that which is condensed, or beaten. The phrase occurs in nearly the same form סגור זהב zâhâb sâgûr, “gold shut up,” Margin,) in 1 Kings 6:20-21; 1 Kings 7:49-50; 1 Kings 10:21; 2 Chronicles…”

“It cannot be gotten for gold: Heb. Fine gold shall not be given for it, Job 28:18; Pro 3:13-15, Pro 8:10, Pro 8:17, Pro 8:19, Pro 16:16 Job 28:16”