“The Lord God said to the serpent, ‘Because you have done this…”
God does not ask the serpent why he did what he did, as God asked Adam and Eve in turn. This is an indication that the serpent cannot be taught. God does not adopt a pedagogical tone toward the serpent as He does toward Adam and Eve. This is another hint of the ‘proto-evangelion’: God is against the serpent but for humankind.