Genesis 46:21
And the sons of Benjamin were Belah, and Becher, and Ashbel, Gera, and Naaman, Ehi, and Rosh, Muppim, and Huppim, and Ard. And the sons of Benjamin were Belah, and Becher, and Ashbel, Gera, and Naaman, Ehi, and Rosh, Muppim, and Huppim, and Ard.
Genesis 46:21 stands as part of the record of Jacob's family, setting out the sons of Benjamin by name as Belah, Becher, Ashbel, Gera, Naaman, Ehi, Rosh, Muppim, Huppim, and Ard. That listing fixes Benjamin's place within the household and gives the line of his sons in order. This family background prepares for the later account in which Benjamin is absent when Joseph's brothers come to Egypt, leaving his named sons as the standing evidence of his household while he remains behind.