Genesis 29:26 in the King James Version
And Laban said, It must not be so done in our country, to give the younger before the firstborn.
Context
25 In the morning, behold, it was Leah! He said to Laban, “What is this you have done to me? Didn’t I serve with you for Rachel? Why then have you deceived me?”
26 Laban said, “It is not done so in our place, to give the younger before the firstborn.
27 Fulfill the week of this one, and we will give you the other also for the service which you will serve with me for seven more years.”