Genesis 46:25
These were the sons of Bilhah, whom Laban gave to Rachel his daughter. She bore these to Jacob, seven in all.
Genesis 29:29
(Laban gave his female servant Bilhah to his daughter Rachel to be her servant.)
Genesis 30:3-8
She replied, "Here is my servant Bilhah! Have sexual relations with her so that she can bear children for me and I can have a family through her."
Genesis 35:22
While Israel was living in that land, Reuben had sexual relations with Bilhah, his father's concubine, and Israel heard about it. Jacob had twelve sons:
Genesis 35:25
The sons of Bilhah, Rachel's servant, were Dan and Naphtali.
Exodus 1:2
Reuben, Simeon, Levi, and Judah,