Genesis 30:3-9

3So she said, “Here’s my maid-servant Bilhah. Go to her and let her give birth on my knees, so that from her I may also build a family.”

4Then she gave her maid-servant Bilhah to him for a wife, and Jacob went to her.

5Bilhah became pregnant and gave birth to a son for Jacob.

6So Rachel said, “God has judged my cause and also heard my voice—and given me a son.” Therefore she named him Dan.

7Then Rachel’s female servant became pregnant again and gave birth to a second son for Jacob.

8So Rachel said, “I’ve surely wrestled greatly with my sister — also I’ve won.” So she named him Naphtali.

9Now Leah saw that she stopped having children, so she took Zilpah her female servant and gave her to Jacob as a wife.