'Cleft' in the Bible

Then he struck them without mercy, a great slaughter; and he went down and lived in the cleft of the rock of Etam.

Then three thousand men of Judah went down to the cleft of the rock of Etam and said to Samson, “Have you not known that the Philistines are rulers over us? What is this that you have done to us?” He said to them, “As they did to me, so I have done to them.”