Eden and the Lamb Slain from the Foundation of the World

Before the garden, before the man, before any man had sinned, the Son of God stepped forward as the Lamb slain from the foundation of the world. Why does one sin against God earn an eternity in hell? Why did God curse the serpent when Satan was the one working in him? And what did Almighty God do about a debt no man could pay? The text answers every one, verse by verse.