Joshua 10:29 - Albert Barnes' Notes on the Bible

Libnah - The word means “white” or “distinct,” and undoubtedly points to some natural feature of the spot, perhaps the “Garde Blanche” of the Crusaders, a castle which stood on or near the white cliffs which bound the plain of Philistia to the east opposite to Ascalon. It was in the southern part of the hill-country of Judah Joshua 15:42, and was one of the cities afterward assigned to the priests Joshua 21:13.