I Chronicles 1:35 Kabbalah

בְּנֵ֖י עֵשָׂ֑ו אֱלִיפַ֛ז רְעוּאֵ֥ל וִיע֖וּשׁ וְיַעְלָ֥ם וְקֹֽרַח׃ (ס)

The sons of Esau: Eliphaz, Reuel, and Jeush, and Jalam and Korah.

Read kabbalistic (mystical) interpretation of I Chronicles 1:35: and classical mystical sources.