In Genesis 3:15, God responds to humanity’s first sin not by abandoning his image-bearers, but by announcing a long war between the serpent and the woman, between their respective offspring. This “enmity” is both judgment and grace: it exposes how deeply evil will now work through human sin, yet it also marks a permanent separation so that humanity will never be fully at peace with the powers of darkness. At the heart of the verse is a singular promise - “he shall bruise your head, and you shall bruise his heel” - which points to a coming deliverer from the woman’s line whose own wounding will be real but not final, while his decisive blow will crush the serpent’s head and ultimately overthrow evil.