Jarmuth - See the note on Joshua 10:3.
Adullam - See the note on Joshua 12:15.
Socoh - It was near this place that David fought with and slew Goliath, the champion of the Philistines, 1-Samuel 17:1.

Jarmuth, and Adullam,.... The two first of these were royal cities, of which see Joshua 10:3,
Socoh; Jerom says (m) there were two little villages in his day of the name of Socho, as you go to Aelia (or Jerusalem), from Eleutheropolis, in the ninth mile on the public way, one in the mountain, and the other in the plain, (the same with this,) both of which were called Socoth: of this place was Antigonus, president of the sanhedrim, and successor of Simeon the just, called in the Misnah (n) a man of Socho:
and Azekah; See Gill on Joshua 10:10; it appears to be near to Socoh from 1-Samuel 17:1, where the Philistines are said to pitch their camp between them.
(m) De loc. Hebrews. fol. 94. I. (n) Pirke Abot, c. 1. sect. 3.

Jarmuth, i.e., Jarmk; see Joshua 10:3. Adullam has not yet been discovered with certainty (see at Joshua 12:15). Socoh, which was fortified by Rehoboam, and taken by the Philistines in the reign of Ahaz (2-Chronicles 11:7; 2-Chronicles 28:18), is the present Shuweikeh by the Wady Sumt, half an hour to the south-west of Jarmk, three hours and a half to the south-west of Jerusalem (see Rob. ii. pp. 343, 349). The Onom. (s. v. Socoh) mentions two viculi named Sochoth, one upon the mountain, the other in the plain, nine Roman miles from Eleutheropolis on the road to Jerusalem. On Azekah, see at Joshua 10:10.