Genesis 29:27-30
27 Finish this daughter’s bridal week; then we will give you the younger one also, in return for another seven years of work.”
28 And Jacob did so. He finished the week with Leah, and then Laban gave him his daughter Rachel to be his wife.
29 Laban gave his servant girl Bilhah to his daughter Rachel as her maidservant.
30 Jacob lay with Rachel also, and he loved Rachel more than Leah. And he worked for Laban another seven years.