John Gill Commentary Judges 18:11

"And there set forth from thence of the family of the Danites, out of Zorah and out of Eshtaol, six hundred men girt with weapons of war." — Judges 18:11 (ASV)

And there went from thence of the family of the Danites
Or families, the singular being put for the plural; for it can hardly be thought that such a number of men, as after mentioned, went out of one family:

out of Zorah, and out of Eshtaol ;
the two places the spies were sent from, and now had returned unto: and upon their report, and at their instigation, and by the encouragement they gave, there were

six hundred men appointed with weapons of war ;
that set out armed from the above places, on the expedition to take Laish.