Genesis 35:24

Israel traveled, and spread his tent beyond the tower of Eder.

While 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.

The sons of Leah: Reuben (Jacob’s firstborn), Simeon, Levi, Judah, Issachar, and Zebulun.

The sons of Bilhah (Rachel’s servant): Dan and Naphtali.

The sons of Zilpah (Leah’s servant): Gad and Asher. These are the sons of Jacob, who were born to him in Paddan Aram.

Jacob came to Isaac his father, to Mamre, to Kiriath Arba (which is Hebron), where Abraham and Isaac lived as foreigners.