Genesis 29:29–35
29 And Laban gave Bilhah his female slave to Rachel his daughter as a female servant. 30 Then he also went in to Rachel, and he loved Rachel more than Leah. And he served with him yet another seven years.
31 When Yahweh saw that Leah was unloved he opened her womb, but Rachel was barren. 32 Then Leah conceived and gave birth to a son, and she called his name Reuben, for she said, “Because Yahweh has noticed my misery. Surely now my husband will love me.” 33 And she conceived again and gave birth to a son. And she said, “It is because Yahweh has heard that I am unloved that he gave me this son also.” And she called his name Simeon. 34 And she conceived again and gave birth to a son. Then she said, “Now this time my husband will be joined to me, for I have borne him three sons.” Therefore, she called his name Levi. 35 And she conceived again and gave birth to a son. And she said, “This time I will praise Yahweh.” Therefore she called his name Judah. And she ceased bearing children.