The account of the trial and punishment of the first humans uses a common biblical literary technique called a chiasm. A chiasm states a series of words or ideas and then restates them in reverse order. As Yahweh judged each of the three rebels, his focus shifted back and forth between them:
A. Yahweh questioned the man.
B. Yahweh questioned the woman.
C. Yahweh punished the snake.
Bʹ. Yahweh punished the woman.
Aʹ. Yahweh punished the man.
The placement of the snake’s punishment at the center of the chiasm marks it as the emphasis of the passage, more important than the punishment of the humans. This is appropriate since the snake instigated the whole affair.
Yahweh pronounced a two-part curse on the snake. First, he decreed that it would crawl on its belly and eat dust. This is often understood as an explanation for why snakes have no legs, but nothing suggests the snake suddenly changed form. More likely, it never had legs, and this passage merely takes that existing fact and assigns it a new significance.
Snakes usually coil and rear up before they strike, so a snake crawling on its belly is not ready to attack. Like a servant bowed low to the ground, it is in a position of submission. Eating or licking dust symbolized the subdued position of a defeated enemy. The curse made the snake’s unusual mode of locomotion a symbol of its ultimate defeat.
The second part of the curse predicted continued hostility between the snake and the woman, which their offspring would inherit. Although this verse aptly describes the normal hostile relationship between humans and snakes, the wording requires looking beyond everyday experience.
The defeat of the snake would come through the woman’s zeraʿ (“offspring, seed”). Like the English word “offspring,” zeraʿ can refer to any number of descendants without being marked as plural. But the pronouns referring to the woman’s offspring are all singular. The pronouns “you” and “your” are also singular, referring to the snake alone, not its offspring. The curse of the snake doubled as a promise that an individual from among the woman’s offspring would engage the snake in a life-or-death struggle and emerge victorious, though not unscathed. In the midst of utter disaster, Yahweh extended a glimmer of hope to his rebellious children.