There are several references to Carmel in the Bible. Carmel is mentioned as a city of Judah in the Book of Samuel and also in Joshua 15:55. It is mentioned as the place where Saul erects a monument after the expedition against the Amalekites (1 Samuel 15:12). Carmel is mentioned in 1 Samuel 25:2 as the place of Nabal's possessions, who was the husband of Abigail.[3][4] Beside the agricultural importance of the site, Carmel had also a strategic importance because of it containing the only reliable natural spring of water in the immediate area,[1] which waters are collected in a man-made pool. Carmel, in relation to Maon, lies directly to its north, within close proximity.

During the period of the Crusades in the 12-century CE, a castle was built at Carmel under the command of Renaud of Châtillon.[1][13] William of Tyre mentions Carmel as the camp of King Amalric in 1172

https://en.wikipedia.org/wiki/Carmel_(biblical_settlement)