Albert Barnes Commentary 1 Chronicles 4:39

"And they went to the entrance of Gedor, even unto the east side of the valley, to seek pasture for their flocks." — 1 Chronicles 4:39 (ASV)

Gedor — Rather, read "Gerar" (according to the Septuagint), a fertile district in Philistine country (Genesis 26:6–12; 2 Chronicles 14:14–15).