“The sons of Leah: Reuben (Jacob’s firstborn), Simeon, Levi, Judah, Issachar, and Zebulun.”
Genesis 35:23 (WEB)
Context Reading
21Israel traveled, and spread his tent beyond the tower of Eder. 22While Israel lived in that land, Reuben went and lay with Bilhah, his father’s concubine, and Israel heard of it. Now the sons of Jacob were twelve. 23The sons of Leah: Reuben (Jacob’s firstborn), Simeon, Levi, Judah, Issachar, and Zebulun. 24The sons of Rachel: Joseph and Benjamin. 25The sons of Bilhah (Rachel’s servant): Dan and Naphtali.