In the narrative of Cain and Abel, we see the battle between the offspring of the serpent and the offspring of the woman on full display. But we also see God's grace on full display. Even though we are rebels against the King of the universe like Cain, through faith in Jesus Christ, we don't get what we deserve, but rather, we get grace. And even though the battle against the serpent will be fierce and bloody, we can be assured that Christ is building His Church, and the gates of hell shall not prevail against it.