'Valley' in the Bible

The Philistines also came and spread themselves in the valley of Rephaim.

And the Philistines came up yet again, and spread themselves in the valley of Rephaim.

And David gat him a name when he returned from smiting of the Syrians in the valley of salt, being eighteen thousand men.

And three of the thirty chief went down, and came to David in the harvest time unto the cave of Adullam: and the troop of the Philistines pitched in the valley of Rephaim.