Genesis 29:23-26

23But in the evening he took his daughter Leah and brought her to Jacob, and he went in to her.

24(Laban gave his female servant Zilpah to his daughter Leah to be her servant.)

25And in the morning, behold, it was Leah! And Jacob said to Laban, "What is this you have done to me? Did I not serve with you for Rachel? Why then have you deceived me?"

26Laban said, "It is not so done in our country, to give the younger before the firstborn.