2 Samuel 23:32 - Ellicott's Commentary On The Whole Bible

Of the sons of Jashen, Jonathan. — The preposition of is not in the Hebrew, and should be omitted. For the rest 1 Chronicles 11:34 reads “the sons of Hashem the Gizonite. In both the words the sons of may be an accidental repetition of the last three letters of the preceding word; if not, they should be read as part of the proper name, Jashen (Chronicles Hashem), or Bnejashen (Chronicles Bnehashem) the Gizonite. Jonathan is then a separate name.