I Chronicles 7:18 Kabbalah

וַאֲחֹת֖וֹ הַמֹּלֶ֑כֶת יָלְדָה֙ אֶת־אִישְׁה֔וֹד וְאֶת־אֲבִיעֶ֖זֶר וְאֶת־מַחְלָֽה׃

And his sister Hammolecheth bore Ish-hod, and Abiezer, and Mahlah.

Read kabbalistic (mystical) interpretation of I Chronicles 7:18: and classical mystical sources.