וְאֵ֥לֶּה הָעֹמְדִ֖ים וּבְנֵיהֶ֑ם מִבְּנֵי֙ הַקְּהָתִ֔י הֵימָן֙ הַמְשׁוֹרֵ֔ר בֶּן־יוֹאֵ֖ל בֶּן־שְׁמוּאֵֽל׃
And these are they that took their station, and their sons. Of the sons of the Kohathites: Heman the singer, the son of Joel, the son of Samuel;
Read kabbalistic (mystical) interpretation of I Chronicles 6:18: and classical mystical sources.