Genesis 30:3-9

3So she said, “Here is my maid Bilhah; go in to her, and she will bear a child on my knees, that I also may have children by her.”

4Then she gave him Bilhah her maid as wife, and Jacob went in to her.

5And Bilhah conceived and bore Jacob a son.

6Then Rachel said, “God has judged my case; and He has also heard my voice and given me a son.” Therefore she called his name Dan.

7And Rachel’s maid Bilhah conceived again and bore Jacob a second son.

8Then Rachel said, “With great wrestlings I have wrestled with my sister, and indeed I have prevailed.” So she called his name Naphtali.

9When Leah saw that she had stopped bearing, she took Zilpah her maid and gave her to Jacob as wife.