Cross reference
Genesis 35:25
25 And sons of Bilhah, Rachel's maid-servant: Dan and Naphtali.
Genesis 30:4-8
4 and she giveth to him Bilhah her maid-servant for a wife, and Jacob goeth in unto her;
5 and Bilhah conceiveth, and beareth to Jacob a son,
6 and Rachel saith, `God hath decided for me, and also hath hearkened to my voice, and giveth to me a son;' therefore hath she called his name Dan.
7 And Bilhah, Rachel's maid-servant, conceiveth again, and beareth a second son to Jacob,
8 and Rachel saith, `With wrestlings of God I have wrestled with my sister, yea, I have prevailed;' and she calleth his name Napthali.
Genesis 37:2
2 These `are' births of Jacob: Joseph, a son of seventeen years, hath been enjoying himself with his brethren among the flock, (and he `is' a youth,) with the sons of Bilhah, and with the sons of Zilpah, his father's wives, and Joseph bringeth in an account of their evil unto their father.
Genesis 46:23-25
23 And sons of Dan: Hushim.
24 And sons of Naphtali: Jahzeel, and Guni, and Jezer, and Shillem.
25 These `are' sons of Bilhah, whom Laban gave to Rachel his daughter; and she beareth these to Jacob -- all the persons `are' seven.