Jamieson, Fausset and Brown on Genesis 3:14

Ge 3:14-24. The Sentence.

14. And the Lord God said unto the serpent--The Judge pronounces a doom: first, on the material serpent, which is cursed above all creatures. From being a model of grace and elegance in form, it has become the type of all that is odious, disgusting, and low [Le CLERC, Rosenmuller]; or the curse has converted its natural condition into a punishment; it is now branded with infamy and avoided with horror; next, on the spiritual serpent, the seducer. Already fallen, he was to be still more degraded and his power wholly destroyed by the offspring of those he had deceived.