The king of Geder. Perhaps the same as Gederah in Joshua 15:36. If so, it is the Gedor of the Onomasticon, ten miles from Beit-Jibrin, or Eleutheropolis, now Jedireh. Conder, however, with whom Vandevelde seems to agree, places Geder in the mountain region, and identifies it with Gedor (Joshua 15:58) and the modern Jedur, in the Hebron mountain.
So Keil and Delitzsch, Robinson, and others. The Gedor in 1 Chronicles 4:39 may be the same place. It is described as on the east side of the "gai," or ravine, but no clearer indication of the place is given.
It is, however, unlikely that the Simeonites would have found the children of tiara undisturbed in the mountains of Hebron in the reign of Hezekiah (see 1 Chronicles 4:40, 1 Chronicles 4:41). The LXX.
reads Gerar, and this is very probably the true reading. There was a "Nahal," or winter torrent, there (Genesis 26:17, Genesis 26:19), and therefore possibly a "gal." The whole passage in 1 Chronicles should be consulted.