This too is the result of sin. And the Bible says that we too die because of sin. He must not be allowed to reach out his hand and take also from the tree of life and eat, and live forever. So the LORD God banished him from the Garden of Eden to work the ground from which he had been taken. After he drove the man out, he placed on the east side of the Garden of Eden cherubim and a flaming sword flashing back and forth to guard the way to the tree of life.
Sin causes all kinds of destruction and division.
It divides us inside ourselves. It divides us from family and friends. It divides us from nature. And it divides us from God. This is why we suffer and this is why we die.