With every book of the Bible, there is also a central thought. The central thought of Genesis is:
Christ is the hope and salvation of fallen man, and God will make fallen man to fulfill His purpose through Christ.
Once we have a real and thorough understanding of the book of Genesis, we can see that it presents Christ as the hope and salvation of fallen man. Through Christ, God will enable fallen man to accomplish His purpose.
Genesis is a book with Christ as the center, and Christ is life to the people whom He restored from the fall. Why does this book give us such a record of creation in the first two chapters? Why does it give us the biographies of eight persons in the following forty-eight chapters? We need a deeper understanding. The first two chapters appear to be a record of creation, but this is superficial. The underlying thought is focused on life. These two chapters are a record of life. They are too simple and too brief to be an adequate account of creation. Genesis 1 and 2 were not intended by God to be a record of creation, but a revelation of life.
Future Reading: Life Study of the Bible