Last night at Bible study, the Pastor said that Jacob worked for Laban for 21 years.
I have read it to only say 14 years. He's taking into account that he worked the original 7, then was deceived, then agreed to work for another 7 years for Rachel. Then the passage says that jacob did so (I'm paraphrasing) and did his week long marriage to Leah and later on says that he worked astill another 7 years.
Here is the whole passage I'm speaking of:
"Now Jacob loved Rachel; so he said, “I will serve you seven years for Rachel your younger daughter.