Darkness was often perceived in the Bible as chaos
(ESV)
2 The earth was without form and void, and darkness was over the face of the deep. And the Spirit of God was hovering over the face of the waters.
Darkness was also perceived as the realm of evil.
(ESV)
6 If we say we have fellowship with him while we walk in darkness, we lie and do not practice the truth.
Darkness was also representative of judgment
(ESV)
13 Then the king said to the attendants, ‘Bind him hand and foot and cast him into the outer darkness. In that place there will be weeping and gnashing of teeth.’
(ESV)
30 And cast the worthless servant into the outer darkness. In that place there will be weeping and gnashing of teeth.’
