2 And the LORD sent against him bands of the Chaldees, and bands of the Syrians, and bands of the Moabites, and bands of the children of Ammon, and sent them against Judah to destroy it, according to the word of the LORD, which he spake by his servants the prophets.
The LORD let groups of Chaldeans, Syrians, Moabites, and Ammonites attack Judah. This happened because the LORD said it would, through his messengers called prophets.