Matthew Poole and continuators on 1 Chronicles 6:61

61 And unto the sons of Kohath, which were left of the family of that tribe, were cities given out of the half tribe, namely, out of the half tribe of Manasseh, by lot, ten cities .

Over and above the Priests who were of the same Family of Kohath and Tribe of Levi.

Or, by lot, (with a full Point, for there the Sense ends.) All their Cities were ten cities, as it is expresly said, Ios. 21. 26. Those words, all their cities were, are to be understood out of the former Verse; which is not unusual in the Holy Scripture. And so this sacred Writer explains himself, v. 66, &c. where eight of these Cities are named, whereof onely two are taken out of this half Tribe of Manasseh, v. 70. the other two being named, Ios. 21. 21, &c. where these things are more plainly and fully declared.

Marginal references: Josh. 21. 5.