In Job there are expressions of confidence 14:13-15; 19:25-29 , but these do not determine the main argument of the book.
Her ways are ways of pleasantness, and all her paths are peace.
He the perfection we need to stand before God.
Clearly, he believes, on some level, that he is wise.
When we take a few steps back, like when we stand under the shower or go on holiday, we begin to see the bigger picture.
Socrates, Maimonides, King Solomon, Einstein, Goethe, Gandhi, and every other candidate for the honor of wisdom have held false beliefs about what they did and did not know.