TSK · Judges 1:36

and then the border will turn from the south to the Scorpion Ascent, continue to Zin, and then its direction will be from the south to Kadesh Barnea. Then it will go to Hazar Addar and pass over to Azmon.

Their descendants remained in the land(the Israelites were unable to wipe them out completely). Solomon conscripted them for his work crews, and they continue in that role to this very day.