I Samuel 11:8 Kabbalah

וַֽיִּפְקְדֵ֖ם בְּבָ֑זֶק וַיִּהְי֤וּ בְנֵֽי־יִשְׂרָאֵל֙ שְׁלֹ֣שׁ מֵא֣וֹת אֶ֔לֶף וְאִ֥ישׁ יְהוּדָ֖ה שְׁלֹשִׁ֥ים אָֽלֶף׃

And he numbered them in Bezek; and the children of Israel were three hundred thousand, and the men of Judah thirty thousand.

Read kabbalistic (mystical) interpretation of I Samuel 11:8: and classical mystical sources.