Tohu wa bohu - and the law of first mention
Genesis 1:2 2 And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters.
Jeremiah 4:23 23 I beheld the earth, and, lo, it was without form, and void; and the heavens, and they had no light.
Some say that Jeremiah cant be used as it is second and not first mentioned, it goes not backward but forward this rule. But there are really no problems because the context says it all. The answers are in Genesis 1 already.
Now, what is the context? In verse 2 there is darkness of which God says to, "let there be light", and in day 2 there is a funny thing, God does not say anything good about that day, why? and what is that darkness? Well, we know that the bible interprets the bible.
We read in Isaiah
Isaiah 45:18 18 For thus saith the LORD that created the heavens; God himself that formed the earth and made it; he hath established it, he created it not in vain, he formed it to be inhabited: I am the LORD; and there is none else.
It says He did not create it "tohu", in vain, but formed it to be inhabited. Now, God did create, "BARA" in the beginning, bot "yatsar" or "asah", "yatsar" implyes molding with hands, and "asah" is used of allready existing material, making it into something. Now, When it says "he created it not in vain", the word is "bara", in other words, when God created in the beginning it was not "in vain", "tohu", but it was inhabited.
So with this in mind, it is clear that something had happend to make it "tohu".
So Jeremiah only supports the idea that the creation in Genesis 1.2 is ruined.
Now back to day 2. Why not good? Well, lucifer and his angels had been dispelled from heaven into the firmament, and therefor God would not say anything good about that.
The darkness is also described elsewhere. It says in Jeremiah 4.23 that there was no light, same as in Genesis 1.2.