I Chronicles 4:34

And they went to the entrance of Gedor,.... There was a city of this name in the tribe of Judah, Ch1 4:18 but this seems to be further off, and perhaps is the same with Gedaris, mentioned by Strabo (l) along with Azotus and Askelon, cities that belonged to the Philistines; since it was inhabited by the posterity of Ham, of whom the Philistines were, as in the following verse: even unto the east side of the valley; which was near to Gedor, and a suitable place: to seek pasture for their flocks; their sheep and goats. (l) Geograph. l. 16. p. 522.

In this chapter we have, I. A further account of the genealogies of the tribe of Judah, the most numerous and most famous of all the tribes. The posterity of Shobal the son of Hur (Ch1 4:1-4), of Ashur the posthumous son of Hezron (who was mentioned, Ch1 2:24), with something particular concerning Jabez (Ch1 4:5-10), of Chelub and others (Ch1 4:11-20), of Shelah (Ch1 4:21-23). II. An account of the posterity and cities of Simeon, their conquest of Gedon, and of the Amalekites in Mount Seir (v. 24-43).

4:34-43 The list of men described as leaders of Simeon’s wealthy clans (4:34-38) introduces the description of Simeon’s geographic expansion (4:38-43). The tribe’s expansion involved thirteen family leaders during the days of Hezekiah (late 700s BC) in the area of Gerar. This might have been part of Hezekiah’s military action against Philistine territories (2 Kgs 18:8).