Genesis 30:4-8

30:4 So Rachel gave him her servant Bilhah as a wife, and Jacob had marital relations with her. 30:5 Bilhah became pregnant and gave Jacob a son. 30:6 Then Rachel said, “God has vindicated me. He has responded to my prayer and given me a son.” That is why she named him Dan.

30:7 Bilhah, Rachel’s servant, became pregnant again and gave Jacob another son. 30:8 Then Rachel said, “I have fought a desperate struggle with my sister, but I have won.” So she named him Naphtali.

Genesis 37:2

37:2 This is the account of Jacob.

Joseph, his seventeen-year-old son, was taking care of the flocks with his brothers. Now he was a youngster working with the sons of Bilhah and Zilpah, his father’s wives. Joseph brought back a bad report about them to their father.

Genesis 46:23-25

46:23 The son of Dan: Hushim.

46:24 The sons of Naphtali:

Jahziel, Guni, Jezer, and Shillem.

46:25 These were the sons of Bilhah, whom Laban gave to Rachel his daughter. She bore these to Jacob, seven in all.