He bindeth the floods from overflowing - Margin, Weeping The Hebrew also is "from weeping" מבכי mı̂bekı̂y; referring to the water which trickles down the shaft of the mine. The idea is, that even the large streams which break out in such mines, the fountains and springs which the miner encounters in his operations, he so effectually restrains that they do not even trickle down or "weep" on the sides of the shaft, but it is left perfectly dry. This is necessary in opening mines of coal or minerals, and in making tunnels or other excavations. Yet anyone who has passed into a coal mine, through a tunnel, or into any one of the deep natural caves of the earth, will see how difficult it is to close all the places where water would trickle down. It is in fact seldom done; and if done literally in the time of Job, it indicates a very advanced state of the art of mining. In sinking a shaft, it is often necessary to pass at different depths through strata of earth where the water oozes out in abundance, and where the operations would be necessarily suspended if it could not be stopped or drawn off. The machinery necessary for this constitutes a considerable part of the expense of mining operations.
And the thing that is hid he bringeth forth to light - The concealed treasures; the gold and gems that are buried deep in the earth. He brings them out of their darkness, and converts them to ornament and to use. This ends the description which Job gives of the operations of mining in his time. We may remark in regard to this description:
(1) That the illustration was admirably chosen. His object was to show that true wisdom was not to be found by human science, or by mere investigation. He selects a case, therefore, where man had shown the most skill and wisdom, and where he had penetrated farthest into darkness. He penetrated the earth; drove his shaft through rocks; closed up gushing fountains, and laid bare the treasures that had been buried for generations in the regions of night. Yet all this did not enable him fully to explain the operations of the divine government.
(2) The art of mining was carried to a considerable degree of perfection in the time of Job. This is shown by the fact that his description would apply very well to that art even as it is practiced now. Substantially the same things were done then which are done now, though we cannot suppose with the same skill, or to the same extent, or with the same perfection of machinery.
(3) The time when Job lived was in a somewhat advanced period of society. The art of working metals to any considerable extent indicates such an advance. It is not found among barbarous tribes, and even where the art is to a considerable extent known, it is long before men learn to sink shafts in the earth, or to penetrate rocks, or to draw off water from mines.
(4) We see the wisdom and goodness which God has shown in regard to the things that are most useful to man. Those things which are necessary to his being, or which are very desirable for his comfort, are easily accessible; those which are less necessary, or whose use is dangerous, are placed in deep, dark, and almost inaccessible places. The fruits of the earth are near to man; water flows every where, and it is rare that he has to dig deep for it; and when found by digging, it is a running fountain, not soon exhausted like a mine of gold; and iron, also, the most valuable of the metals, is usually placed near the surface of the earth. But the pearl is at the bottom of the ocean; diamonds and other precious stones are in remote regions or imbedded in rocks; silver runs along in small veins, often in the fissures of rocks, and extending far into the bowels of the earth. The design of placing the precious metals in these almost inaccessible fissures of the rocks, it is not difficult to understand. Had they been easily accessible, and limited in their quantity, they would long since have been exhausted - causing at one time a glut in the market, and at others absolute want. As they are now, they exercise the utmost ingenuity of man, first to find them, and then to procure them; they are distributed in small quantities, so that their value is always great; they furnish a convenient circulating medium in all countries; they afford all that is needful for ornament.
(5) There is another proof of wisdom in regard to their arrangement in the earth, which was probably unknown in the time of Job. It is the fact that the most useful of the metals are found in immediate connection with the fuel required for their reduction, and the limestone which facilitates that reduction. This is now perfectly understood by mineralogists, and it is an instance of the goodness of God, and of the wisdom of his arrangements, which ought not to be disregarded or overlooked. They who wish to examine this subject more at length, may find some admirable views in Buckland's Geology and Mineralogy (Bridgewater Treatises), vol. i. pp. 392-415.

He bindeth the floods - Prevents the risings of springs from drowning the mines; and conducts rivers and streams from their wonted course, in order to bring forth to light what was hidden under their beds. The binding or restraining the water, which, at different depths, annoys the miner, is both difficult and expensive: in some cases it may be drawn off by pipes or canals into neighboring water courses; in others, it is conducted to one receptacle or reservoir, and thence drawn off. In Europe it is generally done by means of steam-engines. What method the ancients had in mining countries, we cannot tell; but they dug deep in order to find out the riches of the earth. Pliny says, nervously, Imus in viscera terrae; et in sede manium opes quaerimus. "We descend into the bowels of the earth; and seek for wealth even in the abodes of departed spirits." The manes or ghosts of the dead, or spirits presiding over the dead, were supposed to have their habitation in the center of the earth; or in the deepest pits and caves. Ovid, speaking of the degeneracy of men in the iron age, Met. lib. i., ver. 137, says: -
Nec tantum segetes alimentaque debita dives
Poscebatur humus; sed itum est in viscera terrae:
Quasque recondiderat, Stygiisque admoverat umbris,
Effodiuntur opes, irritaenenta malorum.
Jamque nocens ferrum, ferroque nocentius aurum
Prodierat: prodit bellum, quod pugnat utroque;
Sanguineaque manu crepitantia concutit arma.
"Nor was the ground alone required to bear
Her annual income to the crooked share:
But greedy mortals, rummaging her store,
Digg'd from her entrails first the precious ore;
And that alluring ill to sight display'd,
Which, next to hell, the prudent gods had laid.
Thus cursed steel, and more accursed gold,
Gave mischief birth, and made that mischief bold;
And double death did wretched man invade,
By steel assaulted, and by gold betray'd."
Dryden.
By binding the floods from overflowing, some have supposed that there is an allusion to the flux and reflux of the sea. In its flowing it is so bound, has its bounds assigned by the Most High, that it does not drown the adjacent country; and in its ebbing the parts which are ordinarily covered with the water are brought to view.

He bindeth the floods from overflowing,.... As the miner finds ways and means of cutting through rocks, and draining and carrying off the waters in his mine; so he makes use of other methods of restraining and keeping back the waters from coming into and overflowing his works, and even "from weeping" (m), as in the original text; he binds them up so firmly, and stops every avenue and passage so close, that the waters cannot so much as ooze, or distil and drop as a tear from the eye:
and the thing that is hid bringeth he forth to light; the several metals and minerals, gems and precious stones, that lay hid in the bosom of the earth, are fetched out, and brought to light by the diligence and labours of the miner; the same that are called stones of darkness, and of the shadow of death, Job 28:3. This verse is likewise by several interpreted of God, and of what is done by him in the things of nature and providence; he it is that at first shut up the sea with doors; made the cloud its garment, and thick darkness its swaddling bands, in which he wrapped and bound it, as an infant, and still sets bars and doors to it, and says, hitherto shalt thou come, and no further, Job 38:8; and, in a spiritual sense, he restrains the floods of affliction from overflowing and overwhelming his people; and, when the temptations of Satan come in like a flood upon them, his Spirit sets up a standard against them, which keeps them from doing them any harm; and, when the wrath of persecutors rises up against them, and threatens them with destruction, he withholds those proud waters from going over their souls and overwhelming them: and so likewise it is he that bringeth hidden things to light, things in nature men had never seen or known before; things in providence, dark and intricate; things in grace, out of the sight of the most penetrating understanding: he reveals the secrets of his love and grace to them that fear him; the glorious scheme of salvation by Christ, which was hid in himself, in the thoughts, purposes, and counsels of his heart; the mysteries of his Gospel, hid from the wise and prudent, Matthew 11:25; and life and immortality itself, or the way to it, which he has brought to light through the Gospel; yea, he brings to light all the hidden things of a man's heart, and sets them before him, and convinces him of them in a loving way; and if not now, he will hereafter "bring to light the hidden things of darkness, and will make manifest the counsels of the hearts", 1-Corinthians 4:5; but, as before observed, it is best to understand the whole paragraph of miners; of their sagacity in opening mines, and searching into the bowels of the earth, where none were ever before them; and of their indefatigableness, industry, and labour therein, and of the success that attends them; Job's design being to show, that things rich and valuable, and most remote from the sight of men, may, by diligent application, be investigated and obtained; yet such wisdom is not attainable as to understand the reason of the various dealings of God with the sons of men, both good and bad; and therefore, after all he had said on the above subject, still the question is as follows.
(m) "a fletu", Montanus, Bolducius, Junius & Tremellius, Michaelis, Schultens; so Broughton; "a stillatione", Vatablus, Mercerus, Drusius.

floods--"He restrains the streams from weeping"; a poetical expression for the trickling subterranean rills, which impede him; answering to the first clause of Job 28:10; so also the two latter clauses in each verse correspond.

Contrary to the correct indication of the accentuation, Hahn translates: he stops up the droppings of the watercourses; מבּכי has Dech, and is therefore not to be connected with what follows as a genitive. But Reimarus' translation: from the drops he connects the streams, is inadmissible. "The trickling water," he observes, "is carefully caught in channels by the miners for use, and is thus brought together from several parts of the reservoir and the water-wheel. What Pliny calls corrugus, corrivatio,." On the contrary, Schlottm. remarks that חבשׁ cannot signify such a connection, i.e., gathering together of watercourses; it occurs elsewhere only of hunting, i.e., binding up wounds. Nevertheless, although חבשׁ cannot directly signify "to collect," the signification coercere (Job 34:17), which is not far from this idea, - as is evident from the Arab. ḥibs (ḥabs), a dam or sluice for collecting water, and Arab. maḥbas 'l-mâ', a reservoir, cistern, - is easily transferable to water, in the sense of binding = catching up and accumulating. But it is contrary to the form of the expression that מבכי, with this use of חבש, should denote the materia ex qua, and that נהרות should be referred to the miry ditches in which "the crushed ore is washed, for the purpose of separating the good from the worthless." On the contrary, from the form of the expression, it is to be translated: a fletu (not e fletu) flumina obligat, whether it be that a fletu is equivalent to ne flent s. stillent (Simeon Duran: שׁלא יזלו), or obligat equivalent to cohibet (Ralbag: מהזּלה). Thus von Veltheim explains the passage, since he here, as in Job 28:10, understands the channels for carrying off the water. "The miner covers the bottom with mire, and fills up the crevices so exactly i.e., he besmears it, where the channel is broken through, with some water-tight substance, e.g., clay, that it may entirely carry off the water that is caught by it out of the pit in which the shaft terminates, and not let it fall through the fissures crevices to the company of miners below to the vein that lies farther down; then the miner can descend still deeper since the water runs outwards and does not soak through, and bring forth the ore that lies below the channel." This explanation overlooks the fact that יארים is used in Job 28:10, whereas Job 28:11 has נהרות. It is not probable that these are only interchangeable expressions for the channels that carry off the water. יארים is an appropriate expression for it, but not נהרות, which as appropriately describes the conflux of water in the mine itself.
The meaning of Job 28:11 is, that he (the miner) binds or stops the watercourses which his working out of the pit has interfered with and injured, so that they may not leak, i.e., that they may not in the least ooze through, whether by building up a wall or by collecting the water that streams forth in reservoirs (Arab. mahbas) or in the channels which carry it outwards, - all these modes of draining off the water may be included in Job 28:11, only the channel itself is not, with von Veltheim, to be understood by נהרות, but the concourse of the water which, in one way or the other, is rendered harmless to the pit-work, so that he (the miner), as Job 28:11 says, can bring to light (אור = לאור) whatever precious things the bowels of the earth conceals (תּעלמהּ, according to Kimchi and others, with euphonic Mappik, as according to the Masora כבכורהּ Isaiah 28:4, גשׁמהּ Ezekiel 22:24, and also וגלהּ Zac 4:2, only לתפארת הקריאה ולא לכינוי, i.e., they have Mappik only for euphony, not as the expression of the suff.).