Cross reference
Genesis 35:25
25 The sons of Bilhah (Rachel's handmaid): Dan and Naphtali.
Genesis 30:4-8
4 She gave him Bilhah her handmaid as wife, and Jacob went in to her.
5 Bilhah conceived, and bore Jacob a son.
6 Rachel said, "God has judged me, and has also heard my voice, and has given me a son." Therefore called she his name Dan.
7 Bilhah, Rachel's handmaid, conceived again, and bore Jacob a second son.
8 Rachel said, "With mighty wrestlings have I wrestled with my sister, and have prevailed." She named him Naphtali.
Genesis 37:2
2 This is the history of the generations of Jacob. Joseph, being seventeen years old, was feeding the flock with his brothers. He was a boy with the sons of Bilhah and Zilpah, his father's wives. Joseph brought an evil report of them to their father.
Genesis 46:23-25
23 The son of Dan: Hushim.
24 The sons of Naphtali: Jahzeel, Guni, Jezer, and Shillem.
25 These are the sons of Bilhah, whom Laban gave to Rachel, his daughter, and these she bore to Jacob: all the souls were seven.