Genesis 30:3-9

3Rachel said, ‘Take my servant Bilhah and have sex with her. Then she can have children on my behalf. Through her, I can have a family.’

4So Rachel gave her servant Bilhah to Jacob to become his wife.

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

6Rachel said, ‘God has shown that I am right. He has listened to me and he has given a son to me.’ Because of this, she called the boy Dan.

7Rachel's servant Bilhah became pregnant again. She gave birth to another son for Jacob.

8Rachel said, ‘I have fought with my sister and I have won.’ She called this son Naphtali.

9Leah saw that she had stopped having children. So she gave her servant Zilpah to Jacob as a wife.