Walk through Amos, verse by verse, with the great Bible Commentaries of Matthew Henry (1662 - 1714) & Adam Clarke (1760 - 1832)
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 he shall bite them: KJV
{And if they shall be hid in the top of Carmel, from thence I seeking shall do them away and if they
shall hide themselves from mine eyes in the deepness of the sea, there I shall command a serpent, and it shall bite them, (and devour them).} Wycliffe's Bible
The top of Carmel, one of the highest parts of the dust of the world in that country, shall not protect them: "Though they hide themselves there, where they imagine nobody will look for them, I will search, and take them out thence; neither the thickest bushes, nor the darkest caves, in the top of Carmel, will serve to hide them. The bottom of the sea shall not serve to conceal them; though they think to hide themselves there, even there the judgments of God shall find them out, and lay hold on them: Thence will I command the serpent, and he shall bite them, the crooked serpent, even the dragon that is in the sea,