Genesis 30:10 KJV

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.

11And Leah said, A troop cometh: and she called his name Gad.

12And Zilpah Leah's maid bare Jacob a second son.