The transition of power brings an explosion of public emotion. Following the anointing of Solomon as king by Zadok the priest and Nathan the prophet at the Gihon spring, the gathered crowd makes its way back to Jerusalem. Their return is marked by immense joy and celebration.
As the cheering masses enter the city, they create a massive uproar. The sheer volume of their celebration shakes the entire area, resulting in a deep, echoing commotion. This joyful wave of sound is the direct cause of the loud noises echoing through the streets, entirely explaining the overwhelming roar that others nearby have suddenly heard.