Genesis 35:21-23

American Standard Version

²¹ And Israel journeyed, and spread his tent beyond the tower of Eder. ²² And it came to pass, while Israel dwelt in that land, that Reuben went and lay with Bilhah his father’s concubine: and Israel heard of it.

Now the sons of Jacob were twelve: ²³ the sons of Leah: Reuben, Jacob’s first-born, and Simeon, and Levi, and Judah, and Issachar, and Zebulun;