Numbers 3:19 Kabbalah

וּבְנֵ֥י קְהָ֖ת לְמִשְׁפְּחֹתָ֑ם עַמְרָ֣ם וְיִצְהָ֔ר חֶבְר֖וֹן וְעֻזִּיאֵֽל׃

And the sons of Kohath by their families: Amram and Izhar, Hebron and Uzziel.

Read kabbalistic (mystical) interpretation of Numbers 3:19: and classical mystical sources.