Job 12:13 - Joseph Benson’s Commentary on the Old and New Testaments

With him is wisdom That is, with God. Perfect wisdom is only in him, and all wisdom in the world cometh from him, who giveth to young and old as it pleaseth him. The ancients were not wise without his gift and grace, and with that a younger man may be wiser than the ancients. He hath counsel Practical wisdom to guide and govern all the affairs of the world; and understanding A perfect knowledge of all persons and things. “Job shows, in the following verses, that the affairs of the world, and the fortunes of men, are subject to such variety of changes, that all human reason and wisdom must be silent with respect to them; since the same calamities involve the good and the wicked, and seem rather to flow from the supreme dominion and unsearchable will of God, than to be distributed according to the rule of exact justice.” Schultens and Dodd.