שמואל א, פרק כ׳, פסוק מ״ב

A final parting between close friends carries a deep sense of urgency. As David and Jonathan prepare to go their separate ways, Jonathan seeks to secure the lasting bond they have formed. He reminds David of their shared agreement, urging him to keep the oath they took firmly in mind. To emphasize the sheer weight of this commitment, Jonathan speaks with an intentional repetition, a deliberate doubling of his words designed to reinforce the absolute certainty and strength of their pledge [רד״ק].

The core of their agreement rests on God acting as the eternal witness between them. This sacred promise is not limited to the two men standing there in the moment. Rather, it establishes a permanent relationship that will obligate both them and their descendants for all generations to come [רש״י, מצודת דוד, צאינה וראינה].