Surely — Job having in the last chapter discoursed of God's various providences toward wicked men, and shewed that God doth sometimes, for a season, give them prosperity, but afterwards calls them to a sad account, and having shewed that God doth sometimes prosper the wicked all their days, so they live and die without any visible token of God's displeasure, when on the contrary, good men are exercised with many calamities; and perceiving that his friends were, scandalized at these methods of Divine providence, and denied the thing, because they could not understand the reason of such dispensations: in this chapter he declares that this is one of the depths of Divine wisdom, not discoverable by any mortal man, and that although men had some degree of wisdom whereby they could search out many hidden things, as the veins of silver, and gold, yet this was a wisdom of an higher nature, and out of man's reach. The caverns of the earth he may discover, but not the counsels of heaven.
Related Commentaries of Job 28:1
Job 28:1
1 Surely there is a veina for the silver, and a place for gold where they fine it.