Genesis 29:18
"And Jacob loved Rachel; and said, I will serve thee seven years for Rachel thy younger daughter."
Cross References (ranked by relevance)
And Jacob fled into the country of Syria, and Israel served for a wife, and for a wife he kept sheep.
Ask me never so much dowry and gift, and I will give according as ye shall say unto me: but give me the damsel to wife.
And Jacob served seven years for Rachel; and they seemed unto him but a few days, for the love he had to her.
And David sent messengers to Ishbosheth Saul’s son, saying, Deliver me my wife Michal, which I espoused to me for an hundred foreskins of the Philistines.
So I bought her to me for fifteen pieces of silver, and for an homer of barley, and an half homer of barley:
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 he went in also unto Rachel, and he loved also Rachel more than Leah, and served with him yet seven other years.