During a deeply significant gathering, King Solomon prepares himself for prayer. He stands before the altar of God in full view of the entire assembled crowd. As he readies himself, he spreads his hands upward [ביאור שטיינזלץ]. This physical gesture is the classic posture of someone reaching out to ask for kindness and grace [מצודת דוד].
At this exact moment, the narrative abruptly pauses. In the parallel account of this event, the story flows directly into the king's spoken words. Here, however, the rhythm is intentionally broken before the prayer actually begins. This sudden stop allows the story to first explain exactly what kind of structure the king is standing on while his hands are raised [רש״י].