Biblical perspective on death

When her mother died, Georgia Purdom's whole world fell apart. "I cried, screamed, and shook my fist at God. It seemed so unfair, and I couldn’t understand why God would do this to me." She asked the question that many Christians do at times like this, “How do you explain death and suffering in a world where an all-powerful, loving, and just God exists?” She goes on:

I found the answer several years later when I really understood for the first time that death is man’s fault, not God’s. God made the world “very good” (Genesis 1:31—meaning no death, disease and suffering). There was only one thing Adam and Eve had to do to keep it that way—obey God by not eating from the tree of knowledge of good and evil (Genesis 2:16–17). Adam and Eve disobeyed God and the punishment for Adam’s sin was death, not just to man (Romans 5:12) but to all of creation (Romans 8:22). Scripture says that “in Adam all die” (1 Corinthians 15:22), so the answer to my question was, “You explain it with sin: Adam’s sin and our personal sin.”