And the sons of Pharez were; of Hezron, the family of the Hezronites: of Hamul, the family of the Hamulites.
Hezron and Hamul. These, though the grandchildren of Judah, are in this list ranked with his sons; because they were constituted heads of houses in room of Er and Onan, deceased (see the note at (Genesis 46:12).