I Chronicles 6:23 Kabbalah

בֶּן־יִצְהָ֣ר בֶּן־קְהָ֔ת בֶּן־לֵוִ֖י בֶּן־יִשְׂרָאֵֽל׃

the son of Izhar, the son of Kohath, the son of Levi, the son of Israel.

Read kabbalistic (mystical) interpretation of I Chronicles 6:23: and classical mystical sources.