The allocation of cities for the priests from within the lands of the other tribes was determined through a lottery system. This lottery specifically fell upon the tribe of Benjamin, requiring them to provide certain towns for the priestly families [רש״י]. One of these designated locations was Alemet, which is identical to the city known as Almon in parallel historical records [רלב״ג].
Although the historical account notes a total of thirteen priestly cities, a discrepancy arises because only three cities are explicitly named in this specific record. For instance, the city of Gibeon, which appears in earlier accounts, is missing from this list. Despite these omissions, the final count of thirteen remains entirely accurate. The absence of certain names is likely due to the fact that at the time this record was written, those specific cities lay in ruins [מלבי״ם].
When the priests eventually took up residence in these thirteen designated cities, they did not settle at random. Instead, they organized and distributed themselves strictly according to their specific family groups [ביאור שטיינזלץ].