וְאִתְּכֶ֣ם יִהְי֔וּ אִ֥ישׁ אִ֖ישׁ לַמַּטֶּ֑ה אִ֛ישׁ רֹ֥אשׁ לְבֵית־אֲבֹתָ֖יו הֽוּא׃
And with you there shall be a man of every tribe, every one head of his fathers’house.
Read halakhic rulings (Jewish law) on Numbers 1:4: and classical halakhic sources.