John Gill Commentary 1 Samuel 30:31

"and to them that were in Hebron, and to all the places where David himself and his men were wont to haunt." — 1 Samuel 30:31 (ASV)

And to [them] which [were] in Hebron
A noted city in the tribe of Judah, in the mountainous part of it, and a city of refuge, and where David was afterwards anointed, first king over Judah, and then over Israel, (2 Samuel 2:4) (5:3) ;

and to all the places where David himself and his men were wont to
haunt ;
where they had their walks, and went to and fro when persecuted by Saul; all such places, and the inhabitants of them, David had a grateful remembrance of, who sheltered and relieved him in the times of his distress.