Exodus 6:24 Kabbalah

וּבְנֵ֣י קֹ֔רַח אַסִּ֥יר וְאֶלְקָנָ֖ה וַאֲבִיאָסָ֑ף אֵ֖לֶּה מִשְׁפְּחֹ֥ת הַקָּרְחִֽי׃

And the sons of Korah: Assir, and Elkanah, and Abiasaph; these are the families of the Korahites.

Read kabbalistic (mystical) interpretation of Exodus 6:24: and classical mystical sources.