'Dark' in the Bible

“Let the stars of its early dawn be dark;Let the morning wait in vain for the light,Let it not see the eyelids of morning (the day’s dawning),

“They grope in darkness without light,And He makes them stagger like a drunken man.”

“The light will be dark in his tent,And his lamp beside him will be put out.

“In the dark they dig into [the penetrable walls of] houses;They shut themselves up by day;They do not know the light [of day].

“Behold, He spreads His lightning around Him [against the dark clouds],And He covers the depths of the sea.

“Tell us [Job] what words [of man] shall we say to such a Being;We cannot state our case because of darkness [that is, our ignorance in the presence of the unsearchable God].

“Who has put wisdom in the innermost being [of man, or in the layers of clouds]Or given understanding to the mind [of man, or to the heavenly display]?