The pride of thine heart hath deceived thee,.... The Edomites were proud of their wealth and riches, which they had by robberies amassed together; and of their military skill and courage, and of their friends and allies; and especially of their fortresses and fastnesses, both natural and artificial; and therefore thought themselves secure, and that no enemy could come at them to hurt them, and this deceived them:thou that dwellest in the clefts of the rock; their country was called Arabia Petraea, the rocky; and their metropolis Petra, the rock: Jerom says that they that inhabited the southern part of the country dwelt in caves cut out of the rock, to screen them from the heat of the sun: or, "thou that dwellest in the circumferences of the rock" ; round about it, on the top of it, in a tower built there, as Kimchi and Ben Melech.
Aben Ezra thinks that "caph", the note of similitude, is wanting; and that the sense is, thou thoughtest that Mount Seir could secure thee, as they that dwell in the clefts of a rock:whose habitation [is] high; upon high rocks and mountains, such as Mount Seir was, where Esau dwelt, and his posterity after, him.
The Targum is,"thou art like to an eagle that dwells in the clefts of the rock, whose habitation is in a high place;''this they were proud of, thinking themselves safe, which deceived them; hence it follows:that saith in his heart, who shall bring me down to the ground?
what enemy, ever so warlike and powerful, will venture to invade my land, or besiege me in my strong hold? or, if he should, he can never take it, or take me from hence, conquer and subdue me. Of the pride, confidence, and security of mystical Edom or antichrist, see Re 18:7.