Genesis 29:22-26

And Laban gathered together all the men of the place, and made a feast.

And it came to pass in the evening, that he took Leah his daughter, and brought her to him; and he went in unto her.

And Laban gave unto his daughter Leah Zilpah his maid for an handmaid.

And it came to pass, that in the morning, behold, it was Leah: and he said to Laban, What is this thou hast done unto me? did not I serve with thee for Rachel? wherefore then hast thou beguiled me?

And Laban said, It must not be so done in our country, to give the younger before the firstborn.