4 Listen, a noise on the mountains, like that of a great multitude! Listen, an uproar among the kingdoms, like nations massing together! The LORD Almighty is mustering an army for war.

Read Isaiah 13:4 Using Other Translations

The noise of a multitude in the mountains, like as of a great people; a tumultuous noise of the kingdoms of nations gathered together: the LORD of hosts mustereth the host of the battle.
The sound of a tumult is on the mountains as of a great multitude! The sound of an uproar of kingdoms, of nations gathering together! The LORD of hosts is mustering a host for battle.
Hear the noise on the mountains! Listen, as the vast armies march! It is the noise and shouting of many nations. The LORD of Heaven’s Armies has called this army together.