Job 14:18

“And surely the mountain falling cometh to nought, etc.] Job here returns to his former subject of the irreparable state of man at death, which he illustrates by various other similes, as before; and first by a “mountain falling”, which may be supposed, and has been fact, and when it does, it “comes to nought”; it crumbles into dust, and where it falls there it lies, and never rises up to a mountain, or to the height it had, any more; or it “withers” f606, as some render it, the plants, herbs, and trees that grow upon it, wither away, (see Na 1:4); or “it is dissolved”, or “flows” f607, and spreads itself over the face of the green earth it covers, and destroys with its dust and sand, which…”

“cometh to naught--literally, "fadeth"; a poetical image from a leaf (Isa 34:4). Here Job falls back into his gloomy bodings as to the grave. Instead of "and surely," translate "yet"; marking the transition from his brighter hopes. Even the solid mountain falls and crumbles away; man therefore cannot "hope" to escape decay or to live again in the present world (Job 14:19). out of his place--so man (Psa 103:16).”

“And surely the mountain falling - Margin, “Fadeth.” The sense of this is, that the hope of man in regard to living again, must certainly fail - as a mountain falls and does not rise again; as the rock is removed, and is not replaced; or as the waters wear away the stones, and they disappear. The hope of dying man was not like the tree that would spring up again Job 14:7-9; it was like the falling mountain, the wasting waters Job 14:11, the rock that was removed. The reference in the phrase before us is, probably, to a mountain that settles down and disappears - as is sometimes the case in violent convulsions of nature. It does not rise again, but is gone to reappear no more. So Job says it…”

“And - As when a great mountain falls, by an earthquake or inundation, it moulders away like a fading leaf, (as the Hebrew word signifies) and as the rock, when by the violence of winds or earthquakes it is removed out of its place, and thrown down, is never re - advanced: and as the waters by continual droppings, wear away the stones, so that they can never be made whole again: and as thou wastest away, by a great and violent inundation, the things which grow out of the dust of the earth, herbs, and fruits, and plants, which once washed away are irrecoverably lost; in like manner, thou destroyest the hope of man: when man dies, all hope of his living again in this world is lost. Job 14:20”

“the mountain: Psa 102:25, Psa 102:26; Isa 40:12, Isa 41:15, Isa 41:16, Isa 54:10, Isa 64:1; Jer 4:24; Rev 6:14; Rev 8:8, Rev 20:11 cometh to nought: Heb. fadeth the rock: Job 18:4; Mat 27:51 Job 14:19”