Genesis 3 describes humanity's first disobedience against God. Adam and Eve have eaten from the forbidden tree after being deceived by the serpent. Their actions introduce shame, alienation, suffering, and death into the human experience.
When God confronts the serpent, He announces continuing hostility between the serpent and the woman, and between their respective offspring. The woman's offspring will strike the serpent's head, while the serpent will strike his heel.
The announcement appears within a series of judgments. Yet Christians have long recognized within these words the earliest indication that evil will not ultimately prevail.