וּמָכִ֞יר לָקַ֤ח אִשָּׁה֙ לְחֻפִּ֣ים וּלְשֻׁפִּ֔ים וְשֵׁ֤ם אֲחֹתוֹ֙ מַעֲכָ֔ה וְשֵׁ֥ם הַשֵּׁנִ֖י צְלָפְחָ֑ד וַתִּהְיֶ֥נָה לִצְלָפְחָ֖ד בָּנֽוֹת׃
and Machir took a wife of Huppim and Shuppim, whose sister’s name was Maacah—and the name of the second was Zelophehad; and Zelophehad had daughters.
Read kabbalistic (mystical) interpretation of I Chronicles 7:15: and classical mystical sources.