The highly anticipated summit between the panicked King of Moab and the hired prophet takes place at a carefully chosen geographic location. Every detail of this meeting point is deliberate, revealing the deep political, psychological, and diplomatic motives driving the king's welcome.
As the prophet's entourage approached, the accompanying officials sent messengers ahead to announce his arrival to the king [רש"י, משכיל לדוד]. In response, the king personally went out to meet him. This gesture was primarily designed to shower the prophet with respect. Knowing that he was dealing with an arrogant man who craved prestige [ספורנו], the king sought to fulfill his earlier promises of wealth and glory, even offering sacrifices in his honor [רלב"ג, אברבנאל]. However, a contrasting perspective suggests that this reception actually highlighted a subtle lack of true respect. Had the king genuinely revered the prophet as a great man, he would have traveled entirely beyond his district to greet him, rather than stopping at the city limits [אור החיים].
The meeting occurs in the capital, the most central and important city in the kingdom. The king may have been hiding elsewhere out of fear of the Israelites, only emerging to the royal city for this specific occasion [משכיל לדוד]. Choosing the capital as the meeting ground was a calculated move to arouse the prophet's pity. By showcasing his magnificent city, the king hoped to demonstrate exactly what was at stake, pointing out the glorious civilization that the approaching Israelites allegedly sought to uproot and destroy. He believed this emotional appeal would spur the prophet to deliver the curse [רש"י, ברכת אשר, לבוש האורה].
The location was situated on the banks of the Arnon River [ביאור שטיינזלץ], marking the absolute furthest edge of the king's territory. Reaching this distant point reflects the king's immense joy and eagerness, as he traveled as far as he possibly could to welcome his guest [רש"ר הירש]. In truth, the king wished to cross the border and continue even further. Yet, the river served as the dividing line between Moab and the Amorites. Because the Amorite territory had already fallen to the Israelites, the king was terrified to advance any further. He halted exactly at the edge of his domain, having already taken a significant risk simply by traveling to such a tense and volatile area [שפתי כהן].
Standing at this extreme boundary also carried a profound diplomatic and legal message. The king deliberately brought his guest to this spot to show him the ancient national borders established long ago, dating back to the days of Noah. He used this vantage point to complain about how the Israelites had violently breached the territories of neighboring nations. By framing the Israelites as aggressive invaders, the king sought to provide moral justification for the impending curse [אור החיים, שפתי כהן]. Furthermore, the specific three-part geographical nature of this meeting place—the capital city, the river boundary, and the edge of the territory—serves as a subtle hint to the three distinct locations where the king would soon take the prophet in his repeated attempts to curse the nation [אדרת אליהו].