Joshua 21:10

10 and they are for the sons of Aaron, of the families of the Kohathite, of the sons of Levi, for theirs hath been the first lot;

Joshua 21:10 Meaning and Commentary

Joshua 21:10

Which the children of Aaron, [being] of the families of the
Kohathites
Who descending from Kohath, in the line of Aaron, were priests:

[who were] of the children of Levi, had;
they were Levites, as descending from Levi, but were priests also, as being of the stock of Aaron, and the cities hereafter mentioned in the said tribe fell to their portion:

for theirs was the first lot;
for being of the line of Aaron, and priests, they had the honour and privilege to have the first lot drawn for them, and out of the tribe for which the first lot was also drawn, the tribe of Judah; here they had their cities allotted them, for a reason before given.

Joshua 21:10 In-Context

8 And the sons of Israel give to the Levites these cities and their suburbs, as Jehovah commanded by the hand of Moses, by lot.

9 And they give out of the tribe of the sons of Judah, and out of the tribe of the sons of Simeon, these cities which are called by name;

10 and they are for the sons of Aaron, of the families of the Kohathite, of the sons of Levi, for theirs hath been the first lot;

11 and they give to them the city of Arba father of Anak (it [is] Hebron), in the hill-country of Judah, and its suburbs round about it;

12 and the field of the city and its villages they have given to Caleb son of Jephunneh for his possession.