'Darkness' in the Bible

those who forsake the paths of uprightness to walk in ways of darkness,

The way of the wicked ones [is] like deep darkness; they do not know what they stumble over.

at twilight, at [the] day's evening, in [the] midst of night and the darkness.

He who curses his father and his mother, his lamp will be extinguished {in the midst of darkness}.