'Dark' in the Bible

The people who walk in darknessWill see a great light;Those who live in a dark land,The light will shine on them.

For the stars of heaven and their constellationsWill not flash forth their light;The sun will be dark when it risesAnd the moon will not shed its light.

Woe to those who deeply hide their plans from the Lord,And whose deeds are done in a dark place,And they say, “Who sees us?” or “Who knows us?”

“I have not spoken in secret,In some dark land;I did not say to the offspring of Jacob,‘Seek Me in a waste place’;I, the Lord, speak righteousness,Declaring things that are upright.