Jeremiah 30:18 - Matthew Poole's English Annotations on the Holy Bible

This verse manifestly is a promise of the rebuilding of the city, and was fulfilled in the times of Ezra; and the term captivity, which in its proper sense relates to persons, not to places, being here applied to places, signifies the miserable state of Jerusalem upon the taking it by Nebuchadnezzar, which God promiseth to change or alter under the notion of bringing again; so we read of the captivity of Job, who yet strictly was never a captive, Job 42:10. Whether by the term heap be meant the heap of rubbish into which the city was turned, upon the taking of it by the king of Babylon, or the hill upon which the city was builded, is not much material; by the palace is meant either the king's house or the temple: so the verse is a promise of the building again of the city, the temple, and the chief governor's house, all which was fulfilled by Ezra, Nehemiah, and Zorobabel, the history of which we read in the books wrote by Ezra and Nehemiah.