Final answer:
The initial description of the Earth in the book of Genesis is a formless and empty void.
Step-by-step explanation:
The initial description given to the Earth before Creation begins is described in the first two chapters of the Biblical Book of Genesis. It states that in the beginning, God created the heavens and the Earth. The creation process involved dividing light from darkness, land from water, and heaven from earth. The Earth was initially described as a formless and empty void, which was then shaped and filled with life.