Genesis 31:49 New International Version (NIV)
49 It was also called Mizpah, because he said, “May the Lord keep watch between you and me when we are away from each other.
For an agreement to be binding, there had to be a third party to witness the agreement. Jacob and Laban used God as their witness. With God as the witness, the two men would keep their word. It is important to keep your word. Make sure that when you make a statement or a promise that you are willing and able to keep your word. Do not take this lightly. It is important to be a person of your word.