וּרְאָיָ֤ה בֶן־שׁוֹבָל֙ הוֹלִ֣יד אֶת־יַ֔חַת וְיַ֣חַת הֹלִ֔יד אֶת־אֲחוּמַ֖י וְאֶת־לָ֑הַד אֵ֖לֶּה מִשְׁפְּח֥וֹת הַצָּֽרְעָתִֽי׃ (ס)
And Reaiah the son of Shobal begot Jahath; and Jahath begot Ahumai, and Lahad. These are the families of the Zorathites.
Read Kabbalistic (mystical) interpretations of I Chronicles 4:2: Zohar and classical Jewish mystical sources, free online.