Charles Ellicott Commentary Amos 9:3

"And though they hide themselves in the top of Carmel, I will search and take them out thence; and though they be hid from my sight in the bottom of the sea, thence will I command the serpent, and it shall bite them." — Amos 9:3 (ASV)

Serpent.— On this expression, i.e., the “waterserpent,” .