Commentators explain that the families listed here, like others in this section, were 'Nethinims' or 'temple servants.' These were the lowest order of ministers, responsible for the most laborious tasks at the sanctuary. Their lineage is traced back to groups like the Gibeonites, who were 'given' to serve the Lord. Their inclusion in the record highlights that God values and remembers the service of all His people, regardless of their status.