“The sons of Reuben, the first-born of Israel, were Hanoch, Pallu, Hezron, and Carmi.”
In fact, the real first-born was Reuben, yet he gets very little attention. Reuben (the Reubenites) had 4 sons (1) Hanoch (the Hanochites), (2) Pallu (the Palluites), (3) Hezron (the Hezronites), and (4) Carmi (the Carmites). However, this Hezron is not the same as the one listed as the grandson of Judah, the son of Perez. These names are exactly the same as in Genesis, chapter 46.
“The sons of Judah were Perez, Hezron, Carmi, Hur, and Shobal.”
Now we look at the settled lands of the southern tribes or clans. This is not the strictly artificial 12 tribes of Israel only. This list that starts with the 5 sons of Judah is completely different from the list in chapter 2, of this book, where the 5 sons were Er, Onan, Shelah, Perez, and Zerah based on Genesis, chapter 38. Only (1) Perez is left over from this early list. (2) Hezron was actually the son of Perez, or the grandson of Judah based on the preceding chapter. (3) Carmi was the son of Zerah, the lesser known twin brother of Perez, so that he is Perez’ nephew, and also a grandson of Judah. (4) Hur, on the other hand, was the grandson of Hezron, via Caleb, thus the great grandson of Judah. (5) Shobal was the son of Hur, thus the great–great grandson of Judah, quite a distance removed from Judah. Once again there is a little confusion on the part of the biblical author here compared to the preceding chapter.