Genesis 30:8

6And Rachel said, God hath judged me, and hath also heard my voice, and hath given me a son: therefore called she his name Dan.

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

8And Rachel said, With great wrestlings have I wrestled with my sister, and I have prevailed: and she called his name Naphtali.

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

10And Zilpah Leah’s maid bare Jacob a son.