Genesis 29:29-31 New Revised Standard Version (NRSV)
29 (Laban gave his maid Bilhah to his daughter Rachel to be her maid.) 30 So Jacob went in to Rachel also, and he loved Rachel more than Leah. He served Laban[a] for another seven years.
31 When the Lord saw that Leah was unloved, he opened her womb; but Rachel was barren.