The treaty had one more clause. Laban said to Jakob, If thou shalt afflict my daughters, doing them injury, and if thou take upon my daughters, there is no man to judge us, the Word of the Lord seeing is the witness between me and thee (Genesis 31:50).
Targum Pseudo-Jonathan uses a phrase of startling theological weight: the Word of the Lord. Not the Lord abstractly. The Memra — the speaking presence of God — was the witness between them. No human eye could peer into Jakob's tent a thousand miles away. No human court could subpoena Leah and Rahel in the land of Canaan. So Laban called in the only witness who could see that far.
In a way, it was his final moment of clarity. A man who had lived by idols acknowledged, in the hour of parting, that only the Living Word of the Lord could be trusted to keep watch over his daughters' future.
The Maggid teaches: when every human witness has to go home, the Word of the Lord remains at the border. Leah and Rahel were guarded by a covenant neither father could see, but both had to trust.