The genealogical records of the tribe of Judah highlight the descendants of Zerah [ביאור שטיינזלץ]. When the accounting expands to include their broader family network, there are different perspectives on who exactly is being counted. This group might encompass the rest of the tribe of Judah in a general sense [ביאור שטיינזלץ]. Alternatively, it may point specifically to the immediate relatives of Yeuel and Asaiah, figures noted in the surrounding family records [מצודת דוד].
The population tally of six hundred and ninety individuals is not an exclusive count of Zerah's descendants. Instead, it serves as a comprehensive total that combines his family line with the descendants of Shelah [מצודת דוד].
The inclusion of Zerah's descendants in this record is a unique historical detail. In the parallel census found in the Book of Nehemiah, this group is entirely omitted [רלב״ג, מלבי״ם]. Those records take a different approach, choosing to focus exclusively on the population count for the descendants of Perez [מצודת דוד, מלבי״ם].