1 Samuel 23:29

And David went up from thence, and dwelt in strong holds at Engedi.

David ... dwelt in strong holds at En-gedi, [Septuagint, en tois stenois Engaddi] - in the straits, the rugged cliffs of En-gedi; i:e., 'the spring of the wild goats or gazelles:' a name given to it from the vast number of ibexes, or Syrian chamois, which inhabit these cliffs on the western shore of the Dead Sea (Joshua 15:62). It is now called Ain Jiddy. On all sides the country full of caverns, which might then serve as lurking-places for David and his men, as they do for outlaws at the present day (Robinson).