Genesis 31:49-53

49and also Mizpah, for he said, “May the Lord watch between you and me when we are out of each other’s sight.

50If you mistreat my daughters or take other wives, though no one is with us, understand that God will be a witness between you and me.”

51Laban also said to Jacob, “Look at this mound and the marker I have set up between you and me.

52This mound is a witness and the marker is a witness that I will not pass beyond this mound to you, and you will not pass beyond this mound and this marker to do me harm.

53The God of Abraham, and the gods of Nahor — the gods of their father  — will judge between us.” And Jacob swore by the Fear of his father Isaac.