Textual scholars attribute the genealogy to the Book of Generations, a document originating from a religiopolitical group similar to that behind the Priestly source, and at a similar date. According to biblical scholars, the Torah's genealogy for Levi's descendants is actually an aetiological myth reflecting the fact that there were four different groups among the Levites—the Gershonites, the Kohathites, the Merarites, and the Aaronids. In these scholars' view, Levite was originally just a job title, deriving from the Minaean word lawi'u, meaning "priest", rather than the name of a tribe.
Jochebed's position in the family tree of Gershon is uncertain. Some manuscripts of the Septuagint version of the Torah state that Jochebed was Kohath's cousin, but the Masoretic Text states that she was Kohath's sister—Amram's aunt—although Jochebed's relationship to Levi is not explicitly stated.
Thus, according to the Septuagint, Gershon's family tree would be as follows:
while according to the masoretic text, Gershon's family tree would be as follows: