16. terribleness—the terror which thou didst inspire into others.
deceived thee—rendered thee proudly confident, as if none would dare to assail thee.
dwellest in … rock—Petra, the chief of Idumea, was cut in the rocks; its ruins are very remarkable. The whole south of Idumea abounds in cave dwellings and rocks.
though … nest … eagle—(Job 39:27; Ob 3, 4). The eagle builds its nest in the highest craggy eyry.