Matthew Poole and continuators on 1 Chronicles 7:7

7 And the sons of Bela; Ezbon, and Uzzi, and Uzziel, and Jerimoth, and Iri, five; heads of the house of their fathers , mighty men of valour, and were reckoned by their genealogies, twenty and two thousand and thirty and four.

Each of them Head, or Chief, or Commander of that House or Family from which he was descended or to which he belonged. For it may seem by comparing this with ch. 8. 3, &c. that these were not the immediate sons of Belah, but his Grandchildren descended each from a several Father; and their Fathers are here omitted peradventure, because they were obscure persons, as their sons are mentioned for their Eminency.