I Chronicles 12:7 Kabbalah

אֶלְקָנָ֡ה וְ֠יִשִּׁיָּהוּ וַעֲזַרְאֵ֧ל וְיוֹעֶ֛זֶר וְיָשָׁבְעָ֖ם הַקָּרְחִֽים׃

Elkanah, and Isshiah, and Azarel, and Joezer, and Jashobeam, the Korahites;

Read kabbalistic (mystical) interpretation of I Chronicles 12:7: and classical mystical sources.