I Chronicles 6:5 Kabbalah

לְֽגֵרְשׁ֑וֹם לִבְנִ֥י בְנ֛וֹ יַ֥חַת בְּנ֖וֹ זִמָּ֥ה בְנֽוֹ׃

Of Gershom: Libni his son, Jahath his son, Zimmah his son;

Read kabbalistic (mystical) interpretation of I Chronicles 6:5: and classical mystical sources.