Charles Ellicott Commentary 1 Samuel 30:29

"and to them that were in Racal, and to them that were in the cities of the Jerahmeelites, and to them that were in the cities of the Kenites," — 1 Samuel 30:29 (ASV)

Rachal. —The name Rachal never occurs again, and is quite unknown. Here the Septuagint, instead of Rachal, has five different names— Ged, Kimath, Saphek, Themath, Karmel. No satisfactory explanation has been suggested for this strange addition; three of them are unknown, and the other two—Gad (Gath) and Carmel—are places we should certainly not expect to meet in this catalogue.

The cities of the Jerahmeelites and Kenites. —These places were situated in the south of Judah; they cannot be traced.