John Gill Commentary 2 Samuel 1:3

"And David said unto him, From whence comest thou? And he said unto him, Out of the camp of Israel am I escaped." — 2 Samuel 1:3 (ASV)

And David said to him, from where you come ?
&c.] It is very likely by his appearance and circumstances he suspected from where he came:

and he said to him, out of the camp of Israel I have escaped ;
which plainly suggested that that was in danger, confusion, and distress.