Isaiah 13:4

4 The voice of [the] multitude in hills, as of many peoples; the voice of [the] sound of kings, of heathen men gathered together. The Lord of hosts commanded to the chivalry of [the] battle, (The sound of a multitude in the hills, yea, that of many people; the sound of kings, and of the heathen gathered together. The Lord of hosts commanded to the cavalry, or to the army, preparing for battle,)

Isaiah 13:4 Meaning and Commentary

Isaiah 13:4

The noise of a multitude in the mountains, like as of a
great people
That is, like the noise of a very numerous people; this noise was heard either on the mountains of Media, where they flocked in vast numbers to the standard set; or on the mountains upon the borders of Chaldea, when the army under Cyrus was marching towards Babylon: a tumultuous noise of the kingdoms of nations gathered together;
for Cyrus's army consisted of several kingdoms and nations; for besides the thirty thousand Persians he brought with him into Media, where he was made general of the Medes also, and was sent with the joint forces of both nations against Babylon, the kingdoms of Ararat, Minni, and Ashchenaz, were prepared, gathered together, and called forth against it, ( Jeremiah 51:27 Jeremiah 51:28 ) : the Lord of hosts mustereth the host of the battle;
or the warlike army: it was the Lord, that has the armies of heaven and earth at his command, who in his providence caused such a numerous army to be formed, directed them where to march, and put them in battle array, and gave them the victory.

Isaiah 13:4 In-Context

2 Raise ye [up] a sign on a misty hill, and enhance ye [the] voice; raise ye the hand, and [the] dukes enter by the gates. (Raise ye up a sign on a misty hill, and lift ye up the voice; raise ye up the hand, and let the leaders enter in by the gates.)

3 I have commanded to mine hallowed men, and I (have) called my strong men in my wrath, that make full out joy in my glory.

4 The voice of [the] multitude in hills, as of many peoples; the voice of [the] sound of kings, of heathen men gathered together. The Lord of hosts commanded to the chivalry of [the] battle, (The sound of a multitude in the hills, yea, that of many people; the sound of kings, and of the heathen gathered together. The Lord of hosts commanded to the cavalry, or to the army, preparing for battle,)

5 to men coming from a far land. The Lord cometh from the highness of heaven, and (with him) the vessels of his strong vengeance, that he destroy all the land.

6 Yell ye, for the day of the Lord is nigh; as wasting, either destroying, it shall come of the Lord. (Yell ye, for the day of the Lord is near, or is soon; it shall come as wasting, or as destruction, from the Lord.)