Genesis 29:30-34

29:30 Jacob had marital relations with Rachel as well. He loved Rachel more than Leah, so he worked for Laban for seven more years.

The Family of Jacob

29:31 When the Lord saw that Leah was unloved, he enabled her to become pregnant while Rachel remained childless. 29:32 So Leah became pregnant and gave birth to a son. She named him Reuben, for she said, “The Lord has looked with pity on my oppressed condition. Surely my husband will love me now.”

29:33 She became pregnant again and had another son. She said, “Because the Lord heard that I was unloved, he gave me this one too.” So she named him Simeon.

29:34 She became pregnant again and had another son. She said, “Now this time my husband will show me affection, because I have given birth to three sons for him.” That is why he was named Levi.