What’s life like outside the garden of Eden? It’s a place where sin, like an animal, is on the prowl. The story of Cain murdering his brother Abel and then continuing his own family line outside of Eden displays the damaging power of sin. God nonetheless shows undeserved mercy toward Cain and provides another son for Adam and Eve, meaning the promise to provide an approved offspring who will crush the serpent’s head is not undone by human sin.