Genesis 35:21-23 New Life Version (NLV)
21 Then Israel traveled on, and put up his tent on the other side of the tall building of Eder. 22 While Israel lived in that land, Reuben went and lay with Bilhah, the woman who acted as his father’s wife. And Israel heard about it.
The Sons of Jacob
There were twelve sons of Jacob. 23 The sons of Leah were Reuben, Jacob’s first-born, then Simeon, Levi, Judah, Issachar, and Zebulun.