Genesis 29:31 in the King James Version
And when the LORD saw that Leah was hated, he opened her womb: but Rachel was barren.
Context
30 He went in also to Rachel, and he loved also Rachel more than Leah, and served with him seven more years.
31 The LORD saw that Leah was hated, and he opened her womb, but Rachel was barren.
32 Leah conceived, and bore a son, and she named him Reuben. For she said, “Because the LORD has looked at my affliction; for now my husband will love me.”