I Chronicles 27:2 Midrash

עַ֞ל הַמַּחֲלֹ֤קֶת הָרִֽאשׁוֹנָה֙ לַחֹ֣דֶשׁ הָרִאשׁ֔וֹן יָֽשָׁבְעָ֖ם בֶּן־זַבְדִּיאֵ֑ל וְעַל֙ מַֽחֲלֻקְתּ֔וֹ עֶשְׂרִ֥ים וְאַרְבָּעָ֖ה אָֽלֶף׃

Over the first course for the first month was Jashobeam the son of Zabdiel; and in his course were twenty and four thousand.

Read midrashic interpretation of I Chronicles 27:2: and classical rabbinic exegesis.