'Cleft' in the Bible

And he smiteth them hip and thigh -- a great smiting, and goeth down and dwelleth in the cleft of the rock Etam.

And three thousand men of Judah go down unto the cleft of the rock Etam, and say to Samson, 'Hast thou now known that the Philistines are rulers over us? and what is this thou hast done to us?' And he saith to them, 'As they did to me, so I did to them.'