17. Verse 2 And the earth was a void and an emptiness, and there was thick darkness over the face ¹ of the deep; and the Spirit of God was hovering over the face ¹ of the waters. The person who has yet to be regenerated is called 'a void and an empty earth', and also 'ground', in which no good or truth at all has been sown - 'void' where there is no good, and 'empty' where there is no truth. Consequently there is 'thick darkness', or stupidity and lack of knowledge about anything that has to do with faith in the Lord and so anything that has to do with spiritual and celestial life. This kind of person is described by the Lord through Jeremiah,

My people are foolish, they know Me not; they are stupid children, having no understanding; they are wise to do evil, and know not how to do good. I looked to the earth, and, behold, a void and an emptiness; and towards the heavens, and they had no light. Jeremiah 4:22-23, 25.

Footnotes:

The number "four" in the Bible represents things being linked together or joined. This is partly because four is two times two, and two represents the ultimate linking between our desire to be good and our understanding of truth. We can also see this in the fact that most buildings are rectangular, with the four sides linking together to make a whole. We also divide directions into four -- north, east, south and west -- and talk about the "four corners" of something meaning all of it. So our special thinking naturally looks at four sides as linking together into a whole.

(References: Apocalypse Explained 417; Arcana Coelestia 1686, 9103, 9601, 9767, 9864)