Genesis 30:3
TSK
She replied,“Here is my servant Bilhah! Sleep with her so that she can bear children for me and I can have a family through her.”
TSK
TSK · Genesis 46:25
Treasury of Scripture Knowledge references in NET.
Genesis 35:22
TSK
While Israel was living in that land, Reuben went to bed with Bilhah, his father’s concubine, and Israel heard about it.Jacob had twelve sons:
Exodus 1:2
TSK
Reuben, Simeon, Levi, and Judah,