Matthew Poole and continuators on Jeremiah 49:16

16 Thy terribleness hath deceived thee, and the pride of thy heart , O thou that dwellest in the clefts of the rock , that holdest the height of the hill; though thou shouldest make thy nest as high as the eagle, I will bring thee down from thence, saith the LORD .

Obadiah in his Prophesie against Edom useth much the same expressions, ver. 3, 4. the word that is here used being of the number of those which are but once found in Scripture hath given Interpreters liberty to abound in their senses of it; some translating it Arrogance, some, thine Idol, but the best Interpreters understand by it their terribleness to others, their being so potent that others were all afraid of them, this deceived them, making them to conclude themselves secure, and out of danger. To which is also added the pride of the heart.

The Countrey of Edom being mountainous they are said to dwell in the clefts of the Rocks, that is in places impregnable, and inaccessible as they thought in the heights of the hill.

But the Lord lets them know no place was to his power inaccessible or impregnable, for if they dwell as high as the Eagle which the Scripture tells us Iob 39.27, 28. Maketh her nest on high, and dwelleth and abideth upon the rock, upon the crag of the rock, yet he would bring them down.