Genesis 30:4-8
So Rachel gave Jacob her servant Bilhah as his wife, and he slept with her, . . .

Genesis 37:2
This is the account of Jacob. When Joseph was seventeen years old, he was tending the flock with his brothers, the sons of Bilhah and Zilpah, his father's wives, and he brought their father a bad report about them.

Genesis 46:23-25
The son of Dan: Hushim. . . .