אֵ֚לֶּה בְּנֵ֣י גִלְעָ֔ד אִיעֶ֕זֶר מִשְׁפַּ֖חַת הָאִֽיעֶזְרִ֑י לְחֵ֕לֶק מִשְׁפַּ֖חַת הַֽחֶלְקִֽי׃
These are the sons of Gilead: of Iezer, the family of the Iezerites; of Helek, the family of the Helekites;
Read kabbalistic (mystical) interpretation of Numbers 26:30: and classical mystical sources.