Joshua 21:10

which went to the descendants of Aaron, one of the clans of the Kohathites who belonged to the people of Levi; since the lot fell to them first.

(these towns were assigned to the descendants of Aaron who were from the Kohathite clans of the Levites, because the first lot fell to them):

to the descendants of Aaron from the Kohathite clans of the Levites, because they received the first lot.

to the descendants of Aaron, who were members of the Kohathite clan within the tribe of Levi, since the sacred lot fell to them first:

and they were for the descendants of Aaron, from the families of the Kohathites, from the descendants of Levi, because the first lot was theirs.

Which the children of Aaron, being of the families of the Kohathites, who were of the children of Levi, had: for theirs was the first lot.