The New John Gill Exposition of the Entire BibleJoshua 21:26
All the cities [were] ten, with their suburbs…
of Ephraim, four out of Dan, and two out of the half tribe of Manasseh:
for the families of the children of Kohath that remained:
who were of
the other branch of the Kohathites, and who did not descend from Aaron,
and were only Levites, and not priests; (See Gill on 21:20).