The division of the land among the tribes of Israel involved mapping out specific regions and the settlements within them. One such area forms a distinct, unified bloc of cities located in the Judean lowlands [ביאור שטיינזלץ].
A careful count of the locations listed in this specific lowland region reveals a total of fifteen distinct names. However, the official tally given at the end of the record accounts for only fourteen cities. To resolve this numerical discrepancy, commentators suggest that two of the names actually refer to a single location, though they differ on which settlements to combine.
One approach suggests that the city of Gederah was also known by a second name, Gederothaim, meaning it should only be counted once [רד״ק, מצודת דוד]. Another perspective identifies the overlap elsewhere in the region. According to this view, Tappuah and Enam do not represent two separate towns. Instead, they refer to the city of Tappuah along with its local spring, forming a single location that was also known as En-tappuah [רש״י].