John Gill Commentary 1 Chronicles 8:3

"And Bela had sons: Addar, and Gera, and Abihud," — 1 Chronicles 8:3 (ASV)

The sons of Bela were Addar, and Gera, and Abihud .
] The first of these is thought to be the same with Ard, mentioned among the sons of Benjamin, (Genesis 46:21) but was one of his grandsons, see (Numbers 26:40) as Gera also was.