The fear of the Lord—that is wisdom, and to shun evil is understanding

Job 28:1-28
But where can wisdom be found?   Where does understanding dwell?
No mortal comprehends its worth; it cannot be found in the land of the living.
It is hidden from the eyes of every living thing,  concealed even from the birds in the sky.
God understands the way to it  and he alone knows where it dwells, for he views the ends of the earth and sees everything under the heavens.
“The fear of the Lord—that is wisdom, and to shun evil is understanding.”
Why?
Is Job or the author speaking in this chapter? The text does not say. But the heart of Job's problem is how to understand the inscrutable高深莫測 ways of God. No miner can uncover a vein of wisdom; all the wealth in the world will not buy it. Only God knows where to find it.
And people become wise through reverence for God and by rejecting evil.
How?
No way to find the wisdom except fear the Lord, then who can shun the evil.