I Chronicles 2:1 Midrash

אֵ֖לֶּה בְּנֵ֣י יִשְׂרָאֵ֑ל רְאוּבֵ֤ן שִׁמְעוֹן֙ לֵוִ֣י וִיהוּדָ֔ה יִשָׂשכָ֖ר וּזְבֻלֽוּן׃

These are the sons of Israel: Reuben, Simeon, Levi, and Judah, Issachar, and Zebulun;

Read midrashic interpretation of I Chronicles 2:1: and classical rabbinic exegesis.