258. Trampling or crushing [the snake] means pushing it down until it travels on its belly and eats dirt, as has now been demonstrated in this verse and the last. Isaiah has something similar:

Jehovah has thrown down those who live up high. The exalted city he will humble; he will humble it all the way to the earth; he will level it all the way to the dust; his foot will tread on it. (Isaiah 26:5-6)

Another:

He will throw them down to the earth with his hand. With his feet the crown of haughtiness will be trampled. (Isaiah 28:2-3)