John Calvin Commentary Joshua 13:14

"Only unto the tribe of Levi he gave no inheritance; the offerings of Jehovah, the God of Israel, made by fire are his inheritance, as he spake unto him." — Joshua 13:14 (ASV)

Only unto the tribe of Levi, etc. This exception was also necessary to prevent the Levites from claiming they were unjustly disinherited and thus causing great unrest concerning their rights. He therefore reminds them that Moses was the author of this distinction and, at the same time, shows that they have no reason to complain of having been defrauded in any way, because an excellent compensation was given to them.

For although the sacrifices were not equally divided among the Levites, their livelihood was sufficiently provided for by all the firstfruits and the tithes. Moreover, as God attracts them with reward to undertake the charge of sacred duties, so he, in turn, exhorts the people to be faithful in paying the sacred offerings by declaring that these offerings are the maintenance of the Levites.