Genesis 31:15

And Laban said unto Jacob, Because thou art my brother, shouldest thou therefore serve me for nought? tell me, what shall thy wages be? And Laban had two daughters: the name of the elder was Leah, and the name of the younger was Rachel. Leah was tender eyed; but Rachel was beautiful and well favored. And Jacob loved Rachel; and said, I will serve thee seven years for Rachel thy younger daughter. And Laban said, It is better that I give her to thee, than that I should give her to another man: abide with me. And Jacob served seven years for Rachel; and they seemed unto him but a few days, for the love he had to her.

Give me my wives and my children, for whom I have served thee, and let me go: for thou knowest my service which I have done thee.

Thus have I been twenty years in thy house; I served thee fourteen years for thy two daughters, and six years for thy cattle: and thou hast changed my wages ten times.

And if a man sell his daughter to be a maidservant, she shall not go out as the menservants do. If she please not her master, who hath betrothed her to himself, then shall he let her be redeemed: to sell her unto a strange nation he shall have no power, seeing he hath dealt deceitfully with her. And if he have betrothed her unto his son, he shall deal with her after the manner of daughters. If he take him another wife; her food, her raiment, and her duty of marriage, shall he not diminish. And if he do not these three unto her, then shall she go out free without money.

And I said unto them, We after our ability have redeemed our brethren the Jews, which were sold unto the heathen; and will ye even sell your brethren? or shall they be sold unto us? Then held they their peace, and found nothing to answer.