(house of rock) a town in the mountains of Judah, built by Jeroboam, (Joshua 15:58; 2 Chronicles 11:7) now Beit-zur . It commands the road from Beersheba and Hebron, which has always been the main approach to Jerusalem from the south.
House of rock, a town in the mountains of Judah (Josh. 15:58), about 4 miles to the north of Hebron....
Easton's Bible Dictionary