Ezra 2:49 Kabbalah

בְּנֵי־עֻזָּ֥א בְנֵי־פָסֵ֖חַ בְּנֵ֥י בֵסָֽי׃

the children of Uzza, the children of Paseah, the children of Besai;

Read kabbalistic (mystical) interpretation of Ezra 2:49: and classical mystical sources.