Ezra 2:56 Kabbalah

בְּנֵי־יַעְלָ֥ה בְנֵי־דַרְק֖וֹן בְּנֵ֥י גִדֵּֽל׃

the children of Jaalah, the children of Darkon, the children of Giddel;

Read kabbalistic (mystical) interpretation of Ezra 2:56: and classical mystical sources.