1 Samuel 23:27-31

But there came a messenger unto Saul, saying, Haste thee, and come; for the Philistines have invaded the land.

Wherefore Saul returned from pursuing after David, and went against the Philistines: therefore they called that place Sela-hammahlekoth.

And David went up from thence, and dwelt in strong holds at En-gedi.