Thematic Bible: What is hidden from mankind

"From where, then, does wisdom come? And where is the place of understanding? It is hidden from the eyes of all living and concealed from the birds of the air. Abaddon and Death say, 'We have heard a rumor of it with our ears.' read more.
"God understands the way to it, and he knows its place. For he looks to the ends of the earth and sees everything under the heavens.