This place name identifies one of the fortified cities in Naphtali's tribal allotment. Joshua 19:35 lists it among the fortified settlements assigned to this northern tribe. The name appears to be a shortened form, possibly meaning 'rock' or 'flint,' though this remains uncertain. The Greek translation rendered it 'Tyre,' but this was likely a confusion rather than indicating the famous coastal city. The actual location of Zer remains unknown, though it was clearly significant enough to be listed among Naphtali's fortified urban centers.