Genesis 30:7 BBE

⁵  And Bilhah became with child, and gave birth to a son.

⁶  Then Rachel said, God has been my judge, and has given ear to my voice, and has given me a son; so he was named Dan.

⁷  And again Bilhah, Rachel's servant, was with child, and gave birth to a second son.

⁸  And Rachel said, I have had a great fight with my sister, and I have overcome her: and she gave the child the name Naphtali.

⁹  When it was clear to Leah that she would have no more children for a time, she gave Zilpah, her servant, to Jacob as a wife.