Israel kept on his way and set up camp at Migdal Eder. While Israel was living in that region, Reuben went and slept with his father’s concubine, Bilhah. And Israel heard of what he did.
There were twelve sons of Jacob.
The sons by Leah:
Reuben, Jacob’s firstborn
The sons by Rachel:
The sons by Bilhah, Rachel’s maid:
The sons by Zilpah, Leah’s maid:
These were Jacob’s sons, born to him in Paddan Aram.