Carmel - where the forests, and, on the west side, the caves, furnished hiding-places (Amo 1:2; Jdg 6:2; 1Sa 13:6).
the sea - the Mediterranean, which flows at the foot of Mount Carmel; forming a strong antithesis to it.
command the serpent - the sea-serpent, a term used for any great water monster (Isa 27:1). The symbol of cruel and oppressive kings (Psa 74:13, Psa 74:14).