Where did the darkness come from? In the beginning God said "let there be light" and there was light. And God saw that the light was good. Then God separated the light form the darkness. Where did the darkness come from? I do not have my Bible with me so my quotes my not be verbatim.
The darkness appears to have been there from the beginning:

the earth was without form or shape, with darkness over the abyss and a mighty wind sweeping over the water
Genesis 1:2, NABRE