בְּנֵ֣י בִנְיָמִן֮ לְמִשְׁפְּחֹתָם֒ לְבֶ֗לַע מִשְׁפַּ֙חַת֙ הַבַּלְעִ֔י לְאַשְׁבֵּ֕ל מִשְׁפַּ֖חַת הָֽאַשְׁבֵּלִ֑י לַאֲחִירָ֕ם מִשְׁפַּ֖חַת הָאֲחִירָמִֽי׃
便雅憫的子孫按著家族：屬比拉的，有比拉族；屬亞實別的，有亞實別族；屬亞希蘭的，有亞希蘭族；
Rashi
לאחירם OF AHIRAM — He is identical with Ehi (אחי) who went down to Egypt (Genesis 46:21), and because he was called after Joseph’s name (Sotah 36b), who was his (Benjamin’s) brother (אח) and greater, (רם) than he, he was also called Achiram.
Chizkuni
לבלע, to Bela, etc;” the sons of Bela were divided into three families, one named after its founder, two after Arad and Naamon,