שמואל א, פרק כ״ה, פסוק כ׳

Abigail’s urgent journey to meet David ends in a dramatic and sudden encounter, shaped entirely by the surrounding landscape. The primary approach among commentators is that this meeting took place in an area defined by two mountains facing each other, separated by a valley. Abigail rode down the hidden slope of one mountain, while David and his men descended the opposite mountain, heading directly toward her [רש״י, מצודת דוד, ביאור שטיינזלץ].

Because of this specific layout, neither party could see the other from a distance. The mountain acted as a natural hiding place, keeping them completely out of each other's sight as they traveled down opposite sides. It was only when they reached the bottom that they suddenly came face-to-face [רד״ק, מצודת ציון]. The sheer shock of this immediate meeting is what prompted Abigail to quickly get off her donkey the moment she saw David [רד״ק].

Furthermore, the nature of this winding terrain clarifies the timeline of events. Since Abigail had already sent her young men ahead of her camp, David must have crossed paths with these servants on the trail before unexpectedly running into Abigail herself [מלבי״ם].