Back Into The Deep

Jeremiah 4:23 ESV 

I looked on the earth, and behold, it was without form and void;

and to the heavens, and they had no light.

Israel and Judah had reverted back to the darkness and confusion by forgoing the light of God. They who had been given the light to carry into the world had let the torch fall into the waters of the deep. They slipped back under the waves of darkness. Like Adam, they had eaten the forbidden fruit of idolatry.