The noise of a multitude in the mountains - The prophet here represents himself as hearing the confused tumult of the nations assembling to the standard reared on the mountains Isaiah 13:2. This is a highly beautiful figure - a graphic and vivid representation of the scene before him. Nations are seen to hasten to the elevated banner, and to engage in active preparations for the mighty war. The sound is that of a tumult, an excited multitude hastening to the encampment, and preparing for the conquest of Babylon.

Like as of a great people - Hebrew, 'The likeness of a great people.' That is, such a confused and tumultuous sound as attends a great multitude when they collect together.

A tumultuous noise - Hebrew, 'The voice of the tumultuous noise of the kingdoms of nations gathered together.'

The Lord of hosts - Yahweh, the God of hosts, or armies (note Isaiah 1:9).

Mustereth - Collects; puts in military array. Over all this multitude of nations, hastening with confused sounds and tumult like the noise of the sea, putting themselves in military array, God, unseen, presides, and prepares them for his own great designs. It is not easy to conceive a more sublime image than these mighty hosts of war, unconscious of the hand that directs them, and of the God that presides over them, moving as he wills, and accomplishing his plans.

Of the battle "For the battle" - The Bodleian MS. has למלחמה lemilchamah. Cyrus's army was made up of many different nations. Jeremiah calls it an "assembly of great nations from the north country," Jeremiah 50:9. And afterwards mentions the kingdoms of "Ararat, Minni, and Ashchenaz, (i.e. Armenia, Corduene, Pontus or Phrygia, Vitring.), with the kings of the Medes," Jeremiah 51:27, Jeremiah 51:28. See Xenophon. Cyrop.

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,

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.

The command of Jehovah is quickly executed. The great army is already coming down from the mountains. "Hark, a rumbling on the mountains after the manner of a great people; hark, a rumbling of kingdoms of nations met together! Jehovah of hosts musters an army, those that have come out of a distant land, from the end of the heaven: Jehovah and His instruments of wrath, to destroy the whole earth." Kōl commences an interjectional sentence, and thus becomes almost an interjection itself (compare Isaiah 52:8; Isaiah 66:6, and on Genesis 4:10). There is rumbling on the mountains (Isaiah 17:12-13), for there are the peoples of Eran, and in front the Medes inhabiting the mountainous north-western portion of Eran, who come across the lofty Shahu (Zagros), and the ranges that lie behind it towards the Tigris, and descend upon the lowlands of Babylon; and not only the peoples of Eran, but the peoples of the mountainous north of Asia generally (Jeremiah 51:27) - an army under the guidance of Jehovah, the God of hosts of spirits and stars, whose wrath it will execute over the whole earth, i.e., upon the world-empire; for the fall of Babel is a judgment, and accompanied with judgments upon all the tribes under Babylonian rule.

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.

13:4 Nations - The Medes and Persians and other nations, which served under them in this war.

like...: Heb. the likeness of

4. the mountains-namely, which separate Media and Assyria, and on one of which the banner to rally the hosts is supposed to be reared.

tumultuous noise-The Babylonians are vividly depicted as hearing some unwonted sound like the din of a host; they try to distinguish the sounds, but can only perceive a tumultuous noise.

nations-Medes, Persians, and Armenians composed Cyrus' army.

13:1-5 The threatenings of God's word press heavily upon the wicked, and are a sore burden, too heavy for them to bear. The persons brought together to lay Babylon waste, are called God's sanctified or appointed ones; designed for this service, and made able to do it. They are called God's mighty ones, because they had their might from God, and were now to use it for him. They come from afar. God can make those a scourge and ruin to his enemies, who are farthest off, and therefore least dreaded.