Joshua 21:10

10 and which the children of Aaron, of the families of the Kohathites, of the children of Levi had (for theirs was 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 children of Israel gave by lot to the Levites these cities and their suburbs, as Jehovah commanded through Moses.

9 And they gave out of the tribe of the children of Judah, and out of the tribe of the children of Simeon, these cities which were mentioned by name,

10 and which the children of Aaron, of the families of the Kohathites, of the children of Levi had (for theirs was the first lot);

11 and they gave them Kirjath-Arba, [which Arba was] the father of Anak, that is, Hebron, in the mountain of Judah, with its suburbs round about it.

12 But the fields of the city and the hamlets thereof gave they to Caleb the son of Jephunneh for his possession.