Genesis 29:30-34

30So Jacob had relations with Rachel also, and indeed 1he loved Rachel more than Leah, and he served with 2Laban for 3another seven years.

31Now the Lord saw that Leah was 4unloved, and He opened her womb, but Rachel was unable to have children. 32Leah conceived and gave birth to a son, and named him 5Reuben, for she said, “Because the Lord has 67seen my affliction; surely now my husband will love me.” 33Then she conceived again and gave birth to a son, and said, “8Because the Lord has 9heard that I am 10unloved, He has therefore given me this son also.” So she named him Simeon. 34And she conceived again and gave birth to a son, and said, “Now this time my husband will become 11attached to me, because I have borne him three sons.” Therefore he was named 12Levi.