Genesis 30:9 in the King James Version
When Leah saw that she had left bearing, she took Zilpah her maid, and gave her Jacob to wife.
Context
8 Rachel said, “I have wrestled with my sister with mighty wrestlings, and have prevailed.” She named him Naphtali.
9 When Leah saw that she had finished bearing, she took Zilpah, her servant, and gave her to Jacob as a wife.
10 Zilpah, Leah’s servant, bore Jacob a son.