Job 28:7

“[There is] a path which no fowl knoweth, etc.] A path made by miners to the gold, silver, brass, and iron ores; to the places where gems and precious stones lie; the way to which was never seen, and could never have been discovered by the most sharp-sighted fowl, as “the eagle” f969; which some think is particularly intended; and the Greek word for an eagle seems to be derived from the word used in the text: this fowl, the king of birds, as it is the swiftest, it is the most quick-sighted of any; but, though it is eager, and looks out sharp after its prey, and which it beholds at a great distance, and in the most secret lurking places, and flies unto it, and seizes upon it at once, yet it…”

“fowl--rather, "ravenous bird," or "eagle," which is the most sharp-sighted of birds (Isa 46:11). A vulture will spy a carcass at an amazing distance. The miner penetrates the earth by a way unseen by birds of keenest sight.”

“There is a path which no fowl knoweth - That is, a path in searching for gold and precious stones. The miner treads a way which is unseen by the bird of keenest vision. He penetrates into the deep darkness of the earth. The object of Job is to show the wisdom and the intrepidity of man in penetrating these dark regions in searching for sapphires and gold. The most far-sighted birds could not find their way to them. The most intrepid and fearless beasts of prey dared not adventure to those dangerous regions. The word rendered “fowl” (עיט ‛ayı̂ṭ) means either a ravenous beast, Jeremiah 12:9, or more commonly a ravenous bird; see the notes at Isaiah 46:11. According to Bochart, Hieroz. P. 11.…”

“A path - In the bowels of the earth. Vulture's eye - Whose eye is very quick, and strong, and searcheth all places for its prey. Job 28:8”

“a path: Job 28:21-23, Job 11:6, Job 38:19, Job 38:24; Rom 11:33 Job 28:9”