Albert Barnes Commentary 2 Chronicles 11:6-7

"He built Beth-lehem, and Etam, and Tekoa, And Beth-zur, and Soco, and Adullam," — 2 Chronicles 11:6-7 (ASV)

See Joshua 15 and the notes at Joshua 15:33-36, 15:48-51, and 15:58-59.

For Adullam, see the note on 1 Samuel 22:1. It was in the vicinity of Socoh (Joshua 15:35), but its precise location cannot be determined. It was a place of great antiquity (Genesis 38:1).