The collapse of the Babylonian empire triggers a wave of relief so profound that it echoes throughout all of creation. The resulting joy is poetic and universal, imagining the heavens, the earth, and everything within them breaking into song. This sweeping celebration captures the immense global relief that follows the empire's destruction, an outpouring of emotion directly linked to Babylon's long history of inflicting evil and oppression upon all the nations of the world [מצודת דוד, רד״ק].
This worldwide jubilation is sparked by the arrival of an invading force from the north. The conquerors destined to lay waste to Babylon are the combined armies of Persia and Media, descending from their territories to the northeast [מצודת דוד]. Leading this devastating charge against the Babylonian stronghold is Darius, the king of Persia, accompanied by his vast military ranks [רד״ק].