Joshua 21:10

10 and they were for the children of Aharon, of the families of the Kehati, who were of the children of Levi; 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 The children of Yisra'el gave by lot to the Levites these cities with their suburbs, as the LORD commanded by Moshe.
9 They gave out of the tribe of the children of Yehudah, and out of the tribe of the children of Shim`on, these cities which are [here] mentioned by name:
10 and they were for the children of Aharon, of the families of the Kehati, who were of the children of Levi; for theirs was the first lot.
11 They gave them Kiryat-Arba, [which Arba was] the father of `Anak (the same is Hevron), in the hill-country of Yehudah, with the suburbs of it round about it.
12 But the fields of the city, and the villages of it, gave they to Kalev the son of Yefunneh for his possession.
The Hebrew Names Version is in the public domain.