Joshua 21:10

10 they were for the descendants of Aharon, of the families of the K'hati, who were among the descendants of Levi; because 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 people of Isra'el gave by lot to the L'vi'im these cities with the surrounding open land, as ADONAI had ordered through Moshe.
9 They gave from the tribe of the descendants of Y'hudah and from the tribe of the descendants of Shim'on these cities here mentioned by name;
10 they were for the descendants of Aharon, of the families of the K'hati, who were among the descendants of Levi; because theirs was the first lot.
11 They gave them: Kiryat-Arba - this Arba was the father of 'Anak - (that is, Hevron), in the hills of Y'hudah, with the surrounding open land;
12 but the fields and villages of the city they gave to Kalev the son of Y'funeh as his possession.
Complete Jewish Bible Copyright 1998 by David H. Stern. Published by Jewish New Testament Publications, Inc. All rights reserved. Used by permission.