Genesis 29:27-30

27Finish the week [of the wedding feast] for Leah; then we will give you Rachel also, and in return you shall work for me for seven more years.”

28So Jacob complied and fulfilled Leah’s week [of celebration]; then Laban gave him his daughter Rachel as his [second] wife.

29Laban also gave Bilhah his maid to his daughter Rachel as a maid.

30So Jacob consummated his marriage and lived with Rachel [as his wife], and he loved Rachel more than Leah, and he served with Laban for another seven years.