Genesis 30:7-9

New Catholic Bible

⁷ Bilhah, the slave of Rachel, conceived a second time and bore another son to Jacob. ⁸ Rachel said, “I have undergone a great struggle with my sister and I have won.” Because of this she named him Naphtali.

⁹ Leah, seeing that she had ceased bearing children, took her slave Zilpah and gave her as a wife to Jacob.