Easton's Bible Dictionary (1897)
Citadel, a city in the lowlands of Judah (Josh. 15:44). ). “And David was in the wilderness of Ziph, in a wood” (1 Sam. 23:15). ” This was the last interview between David and Jonathan (23:16-18). It is the modern Khurbet Kila. Others identify it with Khuweilfeh, between Beit Jibrin (Eleutheropolis) and Beersheba, mentioned in the Amarna tablets.
Smith's Bible Dictionary (1863)
(fortress), a city of the Shefelah, or lowland district of Judah. (Joshua 15:44) Its main interest consists in its connection with David. (1 Samuel 23:7-13) It is represented by Kila, a site with ruins, on the lower road from Beit Jibria to Hebron.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
KEI'LAH (fortress), a city in the lowland of Judah, near the Philistine frontier. Josh 15:44. When captured and plundered by a Philistine invasion David came to its rescue, but the inhabitants treacherously plotted with Saul for his betrayal. 1 Sam 23:1-13. After the Captivity its rulers aided in restoring the walls of Jerusalem. Neh 3:17-18; now Kila, 7 miles east of Beit Jibrin.